Can the absorption of vitamins be enhanced?

Can the absorption of vitamins be enhanced?

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Are food additives like vitamins better absorbed when you mix them among fruits?

I heard that secondary substances in fruit promote the absorption.

There are two types of vitamins:

  1. Fat soluble vitamins - Vitamins A, D, E, K
  2. Water soluble vitamins - B complex Vitamins and Vitamin C

Fat soluble vitamins get better abosorbed when fat content of food is good. The bile secretion is also very important. These vitamins form miscelles with the fat molecules and get absorbed as such. The absorption of these vitamins can be enhanced by taking fatty diet.

The water soluble vitamins are absorbed freely and they are also excreted freely - Excess are expelled through urine.

There are inter-vitamin competition and some food biomolecules can inhibit vitamin absorption. For example avidin in the egg would bind to biotin and prevent its absorption. The articles below deal a little with such inhibitions.

For more see:




How does the body absorb vitamins?

A full day's supply of vitamin C! A full day's supply of 12 vitamins and minerals! A single glass of vitamin-D-fortified milk sending half a day's recommended dose of the vitamin coursing through your body!

It's very exciting, all this vitamin-y goodness. Vitamins, which are organic substances found in plant and animal sources, help our bodies function properly. They're crucial to the activities of our cells, our organs, immune systems and general energy supply. They may even help ward off cancer.

What exactly does that mean, though, to consume vitamins? What happens when we swallow foods containing vitamin molecules? How do we absorb them in order to reap their healthful effects?

Well, that depends on the type of vitamin we're talking about. There are two kinds: fat-soluble and water-soluble.

In terms of overall digestion, what's going on is pretty standardized. The digestive tract starts at the mouth there, we chew food and drench it in saliva to begin the process of breaking it down into pieces small enough for our bodies to absorb. That food moves through the esophagus into the stomach, where molecules of carbohydrates, fats, proteins, vitamins and other nutrients are further broken down, usually by stomach acids. The nutrients then move to the small intestine, the large intestine (colon), the rectum, and finally the anus, from which the remaining, non-nutritional matter is expelled.

The small intestine is where vitamin absorption happens (along with most other types of absorption). Water-soluble vitamins, such as vitamin C, have "active transports" for absorption -- molecules that pick them up in the small intestine, in a section called the jejunum, which is located about midway through. These transports carry the vitamin molecules through the intestine's cell walls and deposit them in the body, where they can enter the bloodstream. Because they dissolve in water, they don't require stomach acids to enable absorption this also means they leave the body every day in your urine, so you need to consume these vitamins every day in order to maintain a full supply.

The B vitamins are also water-soluble and need to be replenished every day, although their absorption works a bit differently. They're bound to proteins and therefore require a protein breakdown triggered by stomach acids. Absorption of most of the B vitamins happens further down in the small intestine, in the ileum.

The other type of vitamin, the fat-soluble ones such as A, D, E and K, need to dissolve in fat before they can make it into the body. The process requires fat-digesting bile acids that come from the liver and live in the small intestine. When the bile acids break down the fat the vitamins are dissolved in, the vitamins move with the fat through the intestinal wall, into the body, and finally end up in the liver and in body fat, where they're stored until they're needed (much like fat).

Fat-soluble vitamins, therefore, don't require daily consumption. They stick around inside the body.

One downside of storable vitamins is that they can build up in your system, so it's important to make sure you don't overdo it. In other words, be careful with supplements containing fat-soluble vitamins.

Water-soluble vitamins, on the other hand, tend more toward the deficiency side, since they can't be effectively stored. So remember to drink your O.J. and eat your B-heavy fish, poultry, eggs or fortified bread. You'll run out of energy (among other things) without it.

For more information on vitamin absorption and related topics, look over the links on the next page.

Content: Water-Soluble Vs Fat-Soluble Vitamins

Comparison Chart

PropertiesWater-soluble vitaminsFat-soluble vitamins
TypesVitamin B and CVitamin A, D, E and K
SolubilityIn waterIn lipids
AbsorptionIn the small intestineIn the lymphatic system
TransportMoves into the body via diffusion through the bloodstreamRequires carrier matrix for the transportation
ConsumptionBody tissues quickly consume these vitamins, which need to replenish daily in our dietNot readily consumed by the body and need to replenish periodically in our diet (once a week or a month)
ExcretionEasily excreted through urineNot readily excreted
ToxicityRarely cause toxicityCan cause toxicity if its quantity overdoses
StorageAll the vitamins replace out the body quickly, except vitamin-B12 (stores in liver).In the liver and adipose tissues

Definition of Water Soluble Vitamins

As the term indicates, they are soluble in water. Water soluble vitamin refers to the combination of vitamin-B complex and vitamin-C, which are readily absorbed, consumed by the body tissues and excreted by the kidneys through urine. Our body do not store water-soluble vitamins for future cell activities.

It is one of the category of vitamins that should be regularly supplemented in our diet, as vitamin-B and C are readily degraded or consumed by our body. Water-soluble vitamins do not cause toxicity, but sometimes excess of vitamin-C may consequence diarrhoea.

Definition of Fat Soluble Vitamins

As the term indicates, they are soluble in lipids or fatty acids. Fat soluble vitamin refers to the vitamins-A, D, E and K, which are neither readily absorbed, consumed by the body tissues and excreted by the kidneys through urine. Fat-soluble vitamins occupy mainly in the liver and adipose tissues for future cellular functions.

Our body requires fat-soluble vitamin in very minute quantities, as they degrade slowly by the body. If a person consumes fat-soluble vitamins in a high amount, it leads to toxicity or sometimes cause serious health problems.

Types of Vitamins

Based on solubility or absorbtion inside a body, there are two significant categories of vitamins, namely water-soluble and fat-soluble vitamins. But, depending on the various functions of water-soluble and fat-soluble vitamins, vitamins are typically classified into the following forms:

Types of Water-Soluble Vitamins

There are nine water soluble vitamins including eight forms of vitamin-B complex and vitamin-C. They must be regularly integrated in our diet.

Vitamin-B Complex

It has eight vitamins (each possesses distinct health benefits).

  • Vitamin-B1 or Thiamine: It helps in energy metabolism by converting food into energy, and also coordinates the workings of RNA and DNA together. Vitamin-B1 also maintains the cardiovascular and nervous system healthy.
  • Vitamin-B2 or Riboflavin: It plays an essential role in promoting healthy muscle, skin, vision etc. and also mediates a chemical transformation of tryptophan into niacin.
  • Vitamin-B3 or Niacin: It helps in providing energy metabolism to our body by converting food into energy. Besides that, vitamin-B3 keeps a nervous system and cardiovascular system healthy, and also promotes strength to the skin, hairs, nails etc.
  • Vitamin-B5 or Pantothenic acid: It also provides energy to the body by converting food into chemical energy. Vitamin-B5 aids in overall cell growth and development, supports the functioning of the adrenal gland and also contributes in forming haemoglobin.
  • Vitamin-B6 or Pyridoxine: It helps in energy metabolism by converting food into cellular energy. Vitamin-B6 reduces the risk of cardiovascular disease and also contributes by forming RBCs, insulin, serotonin, haemoglobin etc.
  • Vitamin-B7 or Biotin: It facilitates the metabolism of proteins and carbohydrates. Vitamin-B7 promotes a healthy nervous system, skin, hair, nails etc. and also controls the blood sugar level.
  • Vitamin-B9 or Folic acid: It performs a key role in maintaining a healthy nervous system, repairs DNA damage caused due to toxins, and aids in the formation of blood cells.
  • Vitamin-B12 or Cobalamin: It aids in the formation of blood cells, and participates in the functioning and development of the nervous system. According to the research, vitamin-B12 also prevents megaloblastic anaemia.

It aids in the synthesis of collagen (a structural element of blood vessels, ligaments, tendons and bones). Vitamin-C functions as an antioxidant, which prevents cell in counter to reactive oxygen species. It performs a profound role in an immune system by stimulating the production of WBCs.

Types of Fat-Soluble Vitamins

There are four fat soluble vitamins including vitamin A, D, E and K. We can integrate small amount of fat-soluble vitamins in our diet.


It maintains eye, skin, and bone health, as well as shows antioxidant property by protecting cells against free radicals. Vitamin-A helps in cell repairing and also keeps healthy and glowing skin.


It facilitates homeostasis of calcium and potassium ions in the blood, and becomes necessary to strengthen bones and our immune system. Vitamin-D also supports cardiovascular health.


It shows an antioxidant property, provides immunity to the body to fight off infection and also helps in muscle repairing.


It plays a fundamental role in blood coagulation, prevents from excessive bleeding and maintains bone and heart health. Vitamin-K also shares a property of wound healing, i.e. repairs the damaged cells or tissues.

Transport of Nutrients Across the Intestinal Wall

Transport of most nutrients across the intestinal wall (absorption) is not regulated, so it depends only on common transport principles, like osmosis and electro-chemical gradient, but not on nutrient blood levels.

  • Active transport (against the osmotic gradient energy required): glucose, galactose, amino acids, calcium, iron, vitamin C, vitamin B1, folic acid, bile acids, and, partially, sodium.
  • Facilitated transport (with the help of transport substance, no energy required): fructose, vitamins B2 and B12.
  • Passive transport (down the osmotic gradient, no energy required): most other nutrients

Water transport is enhanced by active transport of glucose and amino acids in the jejunum and sodium transport in the ileum [8] .

About 10 liters of water enters the small intestine every day:

2 liters from the diet, and the rest from saliva, bile, pancreatic and intestinal juices. From this, 9 liters are absorbed in the small intestine, so only about 1 liter enters the colon, where some of it is absorbed, and about 150 mL is excreted with the stool [8] .

Glucose is absorbed in the jejunum with the help of sodium-dependent glucose transporter SGLT1 (S = sodium, GL = glucose, T = transport) only together with sodium (glucose-sodium co-transport). Galactose is absorbed by the same mechanism as glucose.

Fructose absorption depends on the amount of transport protein GLUT5 in the small intestinal wall. Healthy people can absorb up to 50 grams of fructose at one sitting, but those with low amount of GLUT-5 only 0 to 20 grams.

Amino acids are absorbed in the small intestine with the help of amino acid transporters and sodium, by the same mechanism as glucose [9] .

Sodium is absorbed in the small intestine and colon by various mechanisms, such as a co-transport with glucose or amino acids. Chloride transport is mainly accompanied with sodium transport.

Potassium is absorbed down the electrochemical gradient. In the colon, potassium may be absorbed, but it is usually also secreted, so net absorption does not regularly occur [8] .

Iron from animal foods (ferrous [Fe2+] or ‘heme iron’ from hemoglobin and myoglobin) is absorbed better than non-heme (ferric, Fe2+) iron from plant foods (22% vs. 2%) [8] . Iron absorption increases when body iron stores (ferritin) are low (like after bleeding or menstruation) and decreases when they are high [8] .

Calcium absorption in the small intestine is dependent on vitamin D and stimulated by parathormone (PTH), which increases when the blood calcium level falls. Calcium absorption is also stimulated by pregnancy, a growth hormone and insulin, and inhibited by thyroxine and cortisol. In general, only about 30% of dietary calcium is absorbed [8] .

B Vitamins and Vitamin C Don't Require Food

The eight B vitamins and vitamin C are water-soluble, meaning they are not stored in your body and any excess is excreted in your urine. You need to take these every day if your doctor has prescribed them, but they don't need to be taken with a meal. However, taking a big dose of vitamin C can cause stomach upset, which is more likely on an empty stomach. Take it with a meal or split up the amount your doctor has told you to take into no more than 500-milligram doses to minimize gastrointestinal upset, advises Alan R. Gaby, M.D., on the Bottom Line Health website. Gaby also warns against taking B vitamins at night since they can interfere with sleep. If you're taking those with a meal, breakfast or lunch are best.

Absorption of Monosaccharides, Amino Acids, Dipeptides, Tripeptides, Lipids, Electrolytes, Vitamins, and Water

Glucose, amino acids, fats, and vitamins are absorbed in the small intestine via the action of hormones and electrolytes.

Learning Objectives

Describe the process of absorption of nutrients in the small intestine

Key Takeaways

Key Points

  • Proteins are degraded into small peptides and amino acids (di- and tripeptides) before their absorption by proteolytic and digestive enzymes such as trypsin.
  • Lipids (fats) are degraded into fatty acids and glycerol by pancreatic lipase.
  • Carbohydrates are degraded into monosaccharide or oligosaccharide sugars by the action of amylase. Carbohydrates, such as cellulose, pass through the human intestinal tract undigested.
  • Water and some water-soluble vitamins are absorbed by diffusion. Some electrolytes and water non-soluble vitamins require an active uptake mechanism.

Key Terms

  • trypsin: A digestive enzyme that cleaves peptide bonds (a serine protease).
  • lipase: Any of a group of enzymes that catalyses the hydrolysis of lipids.
  • amylase: Any of a class of digestive enzymes that are present in saliva and that break down complex carbohydrates, such as starch, into simpler sugars, such as glucose.


During breastfeeding, the lactase enzyme breaks down lactose (milk sugar). However, lactase production ceases after weaning in most populations, so adults in those populations experience gastric discomfort or distress when eating dairy products.

Digestive Enzymes and the Small Intestine

The small intestine is where most chemical digestion occurs. Most of the digestive enzymes that act in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct.

The enzymes enter the small intestine in response to the hormone cholecystokinin, which is produced in the small intestine in response to the presence of nutrients. The hormone secretin also causes bicarbonate to be released into the small intestine from the pancreas in order to neutralize the potentially harmful acid that comes from the stomach.

Small intestine: This image shows the position of the small intestine in the gastrointestinal tract.

The three major classes of nutrients that undergo digestion are:

  1. Proteins. These are degraded into small peptides and amino acids before absorption. Their chemical breakdown begins in the stomach and continues in the large intestine. Proteolytic enzymes, including trypsin and chymotrypsin, are secreted by the pancreas and cleave proteins into smaller peptides. Carboxypeptidase, which is a pancreatic brush border enzyme, splits one amino acid at a time. Aminopeptidase and dipeptidase free the final amino acid products.
  2. Lipids (fats). These are degraded into fatty acids and glycerol. Pancreatic lipase breaks down the triglycerides into free fatty acids and monoglycerides. Pancreatic lipase works with the help of the salts from the bile secreted by the liver and the gall bladder. Bile salts attach to triglycerides to help emulsify them and aid access by pancreatic lipase. This occurs because the lipase is water soluble, but the fatty triglycerides are hydrophobic and tend to orient towards each other and away from the watery intestinal surroundings. The bile salts are the main thing that holds the triglycerides in their watery surroundings until the lipase can break them into the smaller components that can enter the villi for absorption.
  3. Carbohydrates. Some carbohydrates are degraded into simple sugars, or monosaccharides (e.g., glucose ). Pancreatic amylase breaks down some carbohydrates (notably starch) into oligosaccharides. Other carbohydrates pass undigested into the large intestine for further handling by intestinal bacteria.

Brush Border Enzymes

Brush border enzymes take over from there. The most important brush border enzymes are dextrinase and glucoamylase that further break down oligosaccharides. Other brush border enzymes are maltase, sucrase, and lactase.

Lactase is absent in most adult humans and so lactose, like most polysaccharides, is not digested in their small intestine. Some carbohydrates, such as cellulose, are not digested at all despite being made of multiple glucose units. This is because the cellulose is made out of beta-glucose that makes the inter-monosaccharidal bindings different from the ones present in starch, which consists of alpha-glucose. Humans lack the enzyme for splitting the beta-glucose-bonds, something reserved for herbivores and the bacteria from the large intestine.

The fat-soluble vitamins A, D, and E are absorbed in the upper small intestine. The factors that cause the malabsorption of fat can also affect the absorption of these vitamins. Vitamin B12 is absorbed in the ilium and must be bound to intrinsic factor, a protein secreted in the stomach, in order to be absorbed. If intrinsic factor is missing, then Vitamin B12 is not absorbed and pernicious anemia results.

Of the water-soluble vitamins, the transport of folate and B12 across the apical membrane are independent from sodium (Na+), but the other water-soluble vitamins are absorbed by Na+ co-transporters. In physiology, the primary ions of electrolytes are sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), chloride (Cl−), hydrogen phosphate (HPO42−), and hydrogen carbonate (HCO3−).

Sodium is the main electrolyte found in extracellular fluid and is involved in fluid balance and blood pressure control. Electrolyte balance is regulated by hormones, generally with the kidneys flushing out excess levels. In humans, electrolyte homeostasis is regulated by hormones such as the antidiuretic, aldosterone, and parathyroid hormones.

Serious electrolyte disturbances, such as dehydration and over-hydration, may lead to cardiac and neurological complications that, unless they are rapidly resolved, will result in a medical emergency. Water and minerals are reabsorbed back into the blood in the colon (large intestine) where the pH is slightly acidic—about 5.6 to 6.9.

Can You Absorb Nutrients Through Your Skin?

Nicotine, hormones and certain medications can all be delivered through the skin through medicinal patches or creams. Why not vitamins and minerals?

When we think about taking nutrients into our bodies, we usually think about swallowing them, in the form of pills, powders, or that radical format known as food. For that matter, when we talk about nutrient absorption, we&rsquore usually talking about the absorption of nutrients from the digestive system into the bloodstream.

But a handful of companies are trying to change the way we think about nutritional supplementation. Instead of swallowing a handful of pills and worrying about whether or not they are being absorbed, why not bypass the digestive tract altogether and apply them directly to your skin?

Nicotine, estrogen, testosterone, and certain pain medications can all be delivered through the skin through medicinal patches, gels, or creams. Why not vitamins and minerals?


Monica Reinagel, MS,LD/N, CNS, is a board-certified, licensed nutritionist and professionally trained chef, author of Nutrition Diva&rsquos Secrets for a Healthy Diet, and host of the Nutrition Diva podcast on Quick and Dirty Tips.

How does your body absorb vitamin D?

  • Food/supplements: After you eat food or take supplements with vitamin D, your body stores it in fat cells until it is needed. At that point, the liver and kidneys transform the stored vitamin D into the active form the body needs - known as calcitriol - via a process called hydroxylation.
  • Sunlight: Your body's process for making vitamin D works similarly after sun exposure. The main difference is that the sun first triggers a type of cholesterol found in the body called 7-dehydrocholesterol. This starts the process of vitamin D production and transport where it moves to the liver and kidneys, much like after you eat foods with vitamin D.

However, not everyone can easily obtain or absorb vitamin D.

What are the fundamental requirements of the animal diet? The animal diet should be well balanced and provide nutrients required for bodily function along with the minerals and vitamins required for maintaining structure and regulation necessary for good health and reproductive capability.

Figure (PageIndex<1>): A balanced diet: For humans, a balanced diet includes fruits, vegetables, grains, and protein. Each of these food sources provides different nutrients the body cannot make for itself. These include vitamins, omega 3 fatty acids, and some amino acids.

Can the absorption of vitamins be enhanced? - Biology

At a Glance:

  • Fasting has many proven health benefits, including improved nutrient absorption.
  • Some advocates claim it's a good idea to take vitamins and supplements while fasting.
  • Avoiding vitamin supplementation during a fasting period improves the effects of the fast and the health benefits of the supplements.
  • It's important to choose high-quality foods and supplements after a fast because your body is in a primed state to absorb nutrients more efficiently.

Fasting, in its various forms, has been used for thousands of years. However, over the last several decades this ancient practice has seen a surge in mainstream popularity thanks to the health and weight loss benefits it has been shown to provide.

With the pronounced spike in fasting awareness and those participating in the practice, we have been flooded with information, both accurate and inaccurate, that tends to muddy the waters regarding fasting "best practices" and protocol. Unfortunately, misinformation is often how useful diet and health practices can get labeled as ineffective fads when, in actuality, they are sound.

One example of an ill-informed fasting "fact" that many people believe is that they should still take their supplements while in a fasted state. Proponents of this idea have made numerous claims as to why you should consume your supplements and multivitamins while fasting, stating everything from the increased potency of vitamins and minerals on a fasted system to claims that it improves the effects of fasting itself.

So what are the biological benefits of foregoing food? And how do vitamins and supplements affect an intermittent fast? Today, we take a deeper look at why you should avoid taking your vitamins and supplements during a fast and what you should focus on while you skip out on sustenance for a set period of time.

Facts on Fasting: Benefits of Intermittent Fasting

While there are many different ways to approach intermittent fasting , impressive health benefits seem to remain relatively consistent. Some of these science-backed benefits include the following:

  • Enhanced stem cell rejuvenation – A study conducted by the biology department at MIT found that after just 24 hours, intestinal stem cells had an increased capacity to regenerate. [1] The researchers also noted that the result was seen in both young and old test subjects, indicating that fasting might be particularly beneficial for the older population, who have a decreased ability to regenerate damaged and aging cells.
  • Reduced oxidative stress – Oxidative stress, which is the result of free radicals created from aging and exposure to environmental toxins, causes cellular degeneration and inflammation. It has been linked to many health issues including chronic illness. [2,3] Studies suggest that intermittent periods of fasting create an effect on our cells that is similar to that of physical exercise. [4] Essentially, fasting produces a "good" type of stress that allows our cells to become more resistant to free radicals.
  • Improves brain function and memory – Research has shown that intermittent fasting has a two-fold beneficial effect on cognitive function. [5] First, fasting increases the rate of neural cell regeneration, which ultimately improves the rate at which your brain cells fire and transmit signals. Second, intermittent fasting raises the levels of a brain hormone called brain-derived neurotrophic factor, which is involved with maintaining a positive mental state and overall brain health.
  • Increases cellular repair – Our cells must undergo a "housekeeping" process in order to function effectively and efficiently. Periods of fasting allow our cells to focus their efforts on this process, known as autophagy, rather than on breaking down food or managing the toxins that come with poor dietary choices. [6]

In addition to the positive physiological effects of fasting, taking a break from our normal eating pattern can change the way we view food and how we approach our diet. Most of us are fortunate enough to have access to more food than we need at any given moment, which can cause many to develop unhealthy habits like overeating, food addiction, and generally making poor food choices. By abstaining from food for a set period of time, many people experience a shift in perspective and how they approach diet and general lifestyle choices. Many who engage in intermittent fasting tend to eat more mindfully, choosing to consume smaller meals that focus on whole, natural foods.

With the extensive list of promising health benefits, its no wonder why those who practice intermittent fasting want to ensure that they follow a protocol that allows for the maximum benefits. For this reason, it's important to take vitamins at the appropriate time to optimize the effects of both the fast and the supplement.

Why you shouldn't take supplements during a fast

It may seem intuitive to try and supplement a fast with a multivitamin product to ensure you're continuing to feed your cells the micronutrients it needs to function at its best. However, supplementing a fast with vitamins and minerals will actually mitigate the health benefits of the fast while also shortchanging the positive effects of the actual supplement. Not to mention, many people will experience nausea and other gastrointestinal distress when taking a vitamin supplement on an empty stomach, which can be particularly detrimental when trying to maintain a healthy electrolyte balance while fasting.

During a fast, our body will rely on internal sources to keep us fueled. In addition to the cellular "housekeeping" that helps our internal system to reset during a fasting period, our cells will also begin to break down endogenous compounds, such as fat, to ensure that you maintain adequate levels of micronutrients and energy. By breaking down fat tissue, tapping into these reserves will release the stored fat-soluble vitamins that remain in our tissue. Additionally, with an adequate intake, the majority of the population will maintain sufficient levels of the water-soluble vitamins during a short-term fast, even though these nutrients are not stored in the body.

Not only will avoiding supplementation during a fast improve our own body's utility for using internal vitamin and energy sources, but it will also enhance the effects of the actual supplements. Our body is incredibly adaptive and will recognize a short-term vitamin deficiency almost instantaneously. In response, our system will prime itself to absorb these nutrients at a higher rate in order to maintain a state of homeostasis, or, biological balance.

While our body is prepared (and will ultimately benefit) from a break from micronutrient intake, there are a few minerals that are important to keep an eye on while fasting. These include sodium, potassium, and other important electrolytes, that play a role in fluid balance. During the initial phases of a fast, our body burns through glycogen, our bodies' stored form of carbohydrate. Because reserved carbs also hold water, when we are in a fasted state we rapidly excrete any held bodily fluids. This rapid water loss can be dangerous and lead to complications like dehydration, irregular heartbeat, nausea, and other more serious problems. With this in mind, electrolytes are one micronutrient that should be taken in while performing a fast. [7] For this reason, you may want to consume electrolyte-rich coconut water during a fast.

Reintroducing supplements following a fast

Once you've completed a fasting period, it's crucial to reintroduce high-quality supplements and nutrient-dense foods before anything else. As we mentioned, our body is more adept at absorbing nutrients following a fast, meaning that the first food and supplement sources will be broken down and absorbed at a much faster rate than they would in a nonfasted system. Additionally, consuming a multivitamin with the first food source introduced will improve the absorption of the nutrients while also limiting the potential negative side effects that come with supplementing on an empty stomach. [8]

Another important note on intake choices after a fast involves the actual physical characteristics of the food and supplements. It's best to reintroduce soft, and easy to digest items that will not shock a system that has been at rest for an extended period of time. This idea also applies to supplements, since our digestive system, which already tends to struggle to break down pills and tablets, will be better set up to absorb vitamins in an alternative form.

The Bioactive Multi by Healthycell is one particular example of an ideal supplement source to consume following a fast. The advanced MICROGEL&trade technology is designed for increased absorption, offering the highest level of micronutrient bioavailability of any multivitamin form. This bioavailability, compounded with the bodies prepared state to efficiently take in nutrients following a fast, will rapidly saturate our cells with the essential vitamins and minerals they crave. Plus, the gentle microgel formula is ideal for a "sleepy" digestive system, limiting the unnecessary stress that comes with the difficult breakdown and digestion of pill-form vitamins.

If you're vegan or focused on a plant-based diet, check out Healthycell's Vegan Essentials MICROGEL, with 30+ vitamins, minerals, and other key nutrients essentials in a plant-based diet.

Lastly, consider supporting your sleep and recovery time with an effective sleep routine and by maximizing all 4 stages of sleep using REM Sleep by Healthycell. REM Sleep can be taken in a fasted state to help you fall asleep easier, stay asleep, achieve REM, and wake up refreshed (so you can stick to your fasting routine.)

Fasting, in its many forms, can be incredibly beneficial as a total-body reset. However, while it may be tempting to supplement a fasting window, it's best to "veto" our vitamins until its time to eat.

About The Author

Born and raised in San Diego, California, Jamie is a true Southern Californian. After attending the University of California, Los Angeles, where she earned her undergraduate degree in Psychology, she went on to study nutrition and marketing, two topics she is extremely passionate about. Learn more about Jamie.


  1. Zolojind

    You, work, do not be afraid of us, we will not touch you. The best way to get rid of temptation is to succumb to it ... Do not dig another hole yourself. The limitedness of narrow-minded people is copied by the unlimited number of them! Only eggs can be steeper than mountains. Everything should be in a person. (Pathologist)

  2. Mishicage

    A really interesting selection.

  3. Yigil

    the good question

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