Inositol is a kind of sugar that affects both the body’s insulin action and several hormonal agents associated with state of mind and cognition. It’s typically referred to as vitamin B8, however it is not actually a vitamin. Inositol also has antioxidant residential or commercial properties that combat the damaging impacts of free radicals in the brain, circulatory system, and other body tissues.

Inositol is discovered naturally in cantaloupe, citrus fruit, and numerous fiber-rich foods (such as beans, brown rice, corn, sesame seeds, and wheat bran). It is likewise sold in supplement form and used as a complementary treatment to deal with a wide variety of medical conditions, including metabolic and mood conditions.

D-chiro-inositol, inositol hexaphosphate (typically described as “IP6”), and the compound myo-inositol are the most commonly utilized inositol supplements. They are usually considered safe if taken properly.

This short article goes over the prospective health benefits and uses of inositol. It also covers dose, preparation, potential negative effects, and interactions you ought to consider prior to taking this substance.

Frequently Called

  • Inositol
  • D-chiro-inositol
  • Inositol hexaphosphate (or “IP6”)
  • Myo-inositol [1]


Inositol is a word that collectively describes molecules with a similar structure, a collection of 9 stereoisomers. While the term ‘inositol’ is utilized frequently with dietary supplements, it generally describes a specific stereoisomer called myo-inositol. Inositols are pseudovitamin compounds that are falsely stated to come from the B-complex family, and are found in the majority of foods however in highest levels in whole grains and citrus fruits.

Myo-inositol reveals the most promise as a dietary supplement for promoting female fertility, restoring insulin level of sensitivity in instances of resistance (type II diabetes and polycystic ovarian syndrome being the most well examined), and for lowering stress and anxiety too. Due to the blended benefits to insulin resistance and fertility, myo-inositol is thought about an excellent treatment for PCOS in females.

It likewise holds some guarantee as an anti-depressant (although not as outstanding as its anxiolytic and anti-panic results) and versus some other conditions connected with stress and anxiety such as panic disorders and binge eating. It is fairly inefficient for schizophrenia and autism, and has failed in dealing with PTSD in spite of its anti-panic impacts.

In part because of its benefits to fertility and PCOS, along with the anxiolytic impacts potentially helping signs of PMS (dysphoria and stress and anxiety primarily), myo-inositol is sometimes described as a basic female health supplement. At times, the anti-depressant effects associated with this supplement appear to just operate in women with males having no advantage.

It is an extremely safe supplement to consume, and all side-effects connected with myo-inositol are simply mild intestinal distress from high dosages. High dosages (usually in the 12-18g range) are required for any neurological effects while lower dosages (2-4g) are sufficient for fertility and insulin sensitizing results. [2]


Inositol can promote glucose uptake in skeletal muscle cells which permits the decline in blood glucose levels. This effect is later on viewed as a decrease in urine glucose concentration and shows a reduction in high blood sugar levels.

In PCOS, the administration of inositol has produced the remission of signs in addition to a reduction in male hormonal agent secretion9, a regulation of the cholesterol level, and a more efficient fat breakdown which enable to a significant decrease on body mass and cravings.

Whens it comes to infertility, inositol has been shown to increase sperm count and motility, in addition to increase the overall quality of oocytes and embryos.

In the brain, inositol has actually been shown to produce a boost in serotonin receptor sensitivity. This activity produces a boost in GABA release. Some of the impacts observed in the brain produced a relief in symptoms of stress and anxiety and obsessive-compulsive conditions. In high doses, it has been shown to even lower panic attacks.

In cancer research, inositol has gained interest as it can serve as an antioxidant, anti-inflammatory and it seems to improve immune homes.

Mechanism of action

The system of action of inositol in brain disorders is not completely understood however it is thought that it may be involved in neurotransmitter synthesis and it is a precursor to the phosphatidylinositol cycle. The change that takes place in the cycle replicates when the postsynaptic receptor is triggered however without triggering the receptor. This activity provokes a fake activation which regulated the activity of monoamines and other neurotransmitters.

Reports have actually shown that insulin resistance plays an essential role in the scientific advancement of PCOS. The existence of hyperinsulinemia can cause an excess in androgen production by promoting ovaries to produce androgens and by lowering the sex hormone binding globulin serum levels. One of the systems of insulin deficiency is believed to be related to a deficiency in inositol in the inositolphosphoglycans. The administration of inositol enables it to serve as a direct messenger of the insulin signaling and enhances glucose tissue uptake. This system is theorized to its functions in diabetes treatment, metabolic syndrome, and weight-loss.

In cancer, the mechanism of action of inositol is not fully comprehended. It is assumed that the administration of inositol increases the level of lower-phosphate inositol phosphates why can impact cycle regulation, growth, and distinction of malignant cells. On the other hand, the development of inositol hexaphosphate after administration of inositol presents antioxidant attributes by the chelation of ferric ions and suppression of hydroxyl radicals.


Inositol is soaked up from the small intestine. In patients with inositol shortage, the maximal plasma concentration after oral administration of inositol is signed up to be of 4 hours.19 Inositol is used up by the tissues by means of sodium-dependent inositol co-transporter which also mediates glucose uptake.20 Oral intake of inositol is registered to create a maximal plasma concentration of 36-45 mcg.

Volume of distribution

The pharmacokinetic profile of inositol was studied in preterm infants and the approximated volume of circulation was reported to be 0.5115 L/kg.

Protein binding

It is thought that inositol can be found bound to plasma proteins.


It is believed that inositol is metabolized to phosphoinositol and after that converted to phosphatylinositol-4,5- biphosphate which is a precursor of the second-messenger particles.25 Inositol can be transformed to D-chiro-inositol via the actions of an epimerase. The normal adjustments to inositol structure appear to be in between all the various isomers.

Hover over products below to view response partners.

  • Inositol
  • Glucuronic acid
  • Route of removal
  • The majority of the administered dosage is excreted in urine.


The pharmacokinetic profile of inositol was studied in preterm babies and the estimated removal half-life was reported to be of 5.22 hours.


The pharmacokinetic profile of inositol was studied in preterm babies and the projected clearance rate was reported to be 0.0679 h. [3]

6 Things to Know About Taking Inositol for PCOS

Polycystic ovary syndrome, or PCOS, is caused by a hormone imbalance. It can lead to involved health problems, consisting of diabetes and infertility. Treatment with vitamin-like substances called inositols has revealed appealing outcomes.

Keep reading to read more about inositol supplements and how they might help people with PCOS control blood sugar and increase the opportunities of conceiving.

Inositol Enhances Insulin Resistance

Inositols are a kind of sugar the body makes. They assist balance chemicals that manage your blood sugar and fertility. They likewise impact your metabolism, the procedure of turning the food you eat into energy.

Lots of people with PCOS are insulin resistant. Their bodies make insulin but aren’t able to utilize it effectively. This increases the threat of diabetes, infertility, weight problems, and high cholesterol.

Inositols make particles associated with the body’s reaction to insulin. Scientists say inositols might belong to the body’s messaging system when the normal insulin signaling system stops working.

You Can Get Inositols From Food and Supplements

You can get inositols by eating healthy foods such as:.

  • Fruits: Cantaloupe, grapefruit, other citrus fruits
  • Beans: Lima, navy
  • Grains: Brown rice, entire wheat
  • Nuts: Almonds, walnuts

You can also buy inositol food supplements, pills, or powders you mix with water. Inositol supplements are usually well-tolerated.

Inositols MI and DCI Are Beneficial For PCOS

There are 9 kinds of inositol, but the two that have the greatest influence on PCOS are myo-inositol (MI) and D-chiro-inositol (DCI).

Generally, MI is transformed to DCI. However researchers think people with PCOS may be less able to convert MI into DCI. Lower levels of DCI increase the threat of insulin resistance and high blood sugar.

High MI to DCI Ratio May Add To PCOS

In healthy females, many body tissue has an MI to DCI ratio of roughly 40 to 1. This ratio is much greater in individuals with PCOS.

Combined therapy with MI and DCI is more effective than taking either inositol alone. Specifically, research reveals a 40:1 MI/DCI ratio is best for rebooting ovulation in people with PCOS.

MI and DCI in a 40:1 ratio may be more efficient than Metformin. One research study discovered individuals with PCOS who took the 40:1 MI/DCI supplement had considerably much better ovulation and pregnancy rates (46.7% vs. 11.2%) than those who did not take the supplement.

However, some food supplement companies continue to offer supplements with differing MI/DCI ratios. One review found that the MI to DCI ratio in PCOS items can vary from as little as.04-to-1 to as high as 104-to-1.

Some supplements contain only DCI, while others contain extra compounds such as vitamins and synthetic sugars. There’s no evidence to reveal these ingredients assist.

The Right MI to DCI Ratio Improves Fertility

PCOS is a typical reason for infertility. Approximately 80% of individuals with PCOS experience infertility difficulties.

People with PCOS have an imbalance of MI to DCI in their ovaries. This can impact their:.

Periods: Individuals with PCOS can have irregular periods or no periods at all. Treatment with inositols has actually been revealed to assist improve insulin level of sensitivity and lower male hormonal agent levels in women with PCOS. This helps restore periods.

Ovulation: Individuals with PCOS might not ovulate each month or at all. Researchers have connected this to having too little MI and too much DCI in the ovaries.

Egg quality: Females with PCOS have actually been shown to produce less mature eggs than females without the condition.12 Researchers have actually connected this to having too little MI in the follicular fluid, which surrounds the eggs within the ovaries.

Eggs can’t develop unless there is a high level of MI in the follicular fluid.5 In healthy females, the MI to DCI ratio in this fluid has to do with 100 to 1. In infertile women with PCOS, the typical ratio of MI to DCI in this fluid is 0.2 to 1.13.

Inositols can assist restore ovulation and enhance oocyte (immature egg) quality. But researchers warn taking the right formulation is essential since high dosages of DCI adversely affect oocytes and avoid the body from taking in MI.

MI Is Utilized Reward Gestational Diabetes

People with PCOS have actually an increased threat of gestational diabetes (GD), which is diabetes that establishes in pregnancy. A study released in 2019 concluded that people with PCOS have a two-fold higher risk of developing GD than those without PCOS.

Taking MI supplements reduces blood glucose levels and GD risk in individuals with PCOS. A 2012 study discovered GD was less common in pregnant women with PCOS who took MI than those who did not take the supplement. [4]


May Have Mental Health Advantages

Inositol might assist stabilize crucial chemicals in your brain, consisting of those thought to affect your state of mind, such as serotonin and dopamine.

Surprisingly, researchers have actually found that some people with depression, stress and anxiety and compulsive disorders have lower levels of inositol in their brain.

Though more research is needed, several research studies recommend that inositol has the prospective to be an alternative treatment for psychological health conditions. It also appears to have less adverse effects than traditional medications.

Panic Disorder

While research study is still limited, inositol supplements may be handy for treating panic attack, a severe kind of anxiety.

Those with panic attack experience regular anxiety attack, which are sudden feelings of extreme fear. Symptoms include quick heart beat, shortness of breath, lightheadedness, sweating and a tingling or numb experience in the hands.

In one study, 20 people with panic attack took either an 18-gram inositol supplement or a typical stress and anxiety medication every day for 1 month. Those taking inositol had fewer anxiety attack per week, compared to individuals taking the stress and anxiety medication.

Likewise, in a 4-week research study, individuals experienced fewer and less extreme panic attacks when taking 12 grams of inositol per day.


Inositol might improve symptoms of anxiety, but research study has actually had actually blended outcomes.

For instance, an early study showed that taking a 12-gram inositol supplement every day for 4 weeks improved symptoms in individuals with anxiety.

On the other hand, subsequent studies were not able to reveal any significant benefits.

Overall, there is insufficient proof yet to state whether inositol has a true effect on depression.

Bipolar illness

As with the other mental health conditions, research on the results of inositol and bipolar illness is restricted. Nevertheless, the results of preliminary studies appear promising.

For instance, a little study in kids with bipolar spectrum disorders showed decreased signs of mania and anxiety when a combination of 3 grams of omega-3 fats and up to 2 grams of inositol were taken daily for 12 weeks.

In addition, studies recommend that 3– 6 grams of inositol taken daily may help reduce symptoms of psoriasis caused by lithium, a common medication used to deal with bipolar affective disorder.


Though more research is needed, inositol shows prospective as an alternative treatment option for psychological health conditions, consisting of panic attack, anxiety and bipolar illness.

Might Assist Control Metabolic Syndrome Risk Aspects

Scientific studies recommend inositol supplements may be advantageous for those with metabolic syndrome.

Metabolic syndrome is a group of conditions that raise your danger of chronic disease, consisting of heart disease and type 2 diabetes.

Particularly, 5 conditions are associated with metabolic syndrome:.

  • Excess fat in the stomach location
  • High levels of triglycerides in the blood
  • Low “good” HDL cholesterol levels
  • High blood pressure
  • High blood sugar

In a year-long medical study in 80 females with metabolic syndrome, 2 grams of inositol taken twice daily reduced blood triglyceride levels by a typical 34% and total cholesterol by 22%. Improvements in high blood pressure and blood glucose were also seen.

Amazingly, 20% of the women taking inositol supplements no longer fulfilled the criteria for metabolic syndrome by the end of the research study.


Inositol may help control metabolic risk elements by helping lower blood triglyceride levels, high blood pressure and blood glucose. It might also improve cholesterol levels.

May Prevent Diabetes During Pregnancy

Some ladies experience high blood sugar level during pregnancy. This condition is called gestational diabetes (GDM) and complicates up to 10% of pregnancies in the United States every year.

In animal studies, inositol has actually been straight associated with the function of insulin, a hormone that controls blood sugar levels.

Only a limited number of studies are readily available on the supplement and GDM in people. However, some suggest that a combination of 4 grams of myo-inositol and 400 mcg of folic acid may be valuable in avoiding GDM when taken daily throughout pregnancy.

Nevertheless, more research study is needed, as other research studies have actually disappointed the same effects.


Inositol might help avoid high blood sugar levels during pregnancy when taken in mix with folic acid, but more research studies are required to validate this effect.

Other Potential Advantages

Inositol has actually been studied as a potential treatment option for numerous conditions.

Besides those currently mentioned, research suggests inositol might be valuable in the following conditions:.

Breathing distress syndrome: In preterm infants, inositol seems useful for dealing with breathing issues from underdeveloped lungs.

Type 2 diabetes: A preliminary study recommends that inositol and folic acid taken daily for 6 months may aid blood glucose control in people with type 2 diabetes.

Obsessive-compulsive condition (OCD): A small study recommends that 18 grams of inositol taken daily for 6 weeks might reduce signs of OCD.


Inositol is a possible treatment choice for preterm infants with respiratory distress syndrome. It may also assist blood sugar level control in people with type 2 diabetes and might decrease symptoms of obsessive-compulsive disorder. [5]


Chemically inositols are isomers of hexahydroxy-cyclohexanes. Amongst the 9 possible geometrical isomers of inositol, 7 are optically inactive or “meso,” and the staying two form a chiral pair. The planar structures of the various isomers of this substance are presented in Figure 1. The particle of MI has one axial and 5 equatorial hydroxyl groups. The axial hydroxyl group at position 2 is most steady to hydrolysis.

L-myo-inositol-1-phosphate synthase (MIPS) catalyzes the first step in the biosynthesis of all myo-inositol-containing substances (Seelan et al., 2009). It converts glucose-6-phosphate to myo-inositol-1-phosphate (MIP). The phosphate moiety in MIP is subsequently eliminated by myo-inositol-1-phosphatase (IMPase) to produce free MI (Majumder and Biswas, 2006).

In addition, this compound might likewise be produced by cyclic synthesis (Agranoff et al., 1958; Paulus and Kennedy, 1960) and the hydrolysis of phosphatidylinositol. Although MIP is the intermediate common to both paths, 2 various forms of substance are produced, the L-form by the artificial path and the D-form by the cyclic pathway (Parthasarathy and Eisenberg, 1986). However, both the isomers are catalyzed by IMPase (Eisesnberg, 1967), which produces MI. [6]

Sources of Inositol

As formerly discussed, inositol is found in naturally in specific foods but in relatively low levels. The highest levels of inositol are usually discovered in entire grains and citrus fruits.

Typical Food Sources.

  • Oranges
  • Grapefruit
  • Dried prunes
  • Terrific northern beans
  • Navy beans
  • Stone ground wheat
  • Bran flakes

Inositol is in some cases marketed as vitamin B8– however, so is a compound called AMP (adenosine monophosphate). Make sure to look for supplements specifically identified inositol or myo-inositol.

Do I Need A Inositol Supplement?

Inositol is a psuedovitamin and not critical for human function. However, as seen in long-lasting lithium treatment, inositol exhaustion can result in psoriasis. Given the appealing outcomes of clinical trials for conditions varying from fertility issues and metabolic disorders to behavioral and neurological conditions, inositol supplements need to be offered strong factor to consider for anybody fighting with these conditions.

Just How Much Inositol Do I Required?

To experience optimum benefits from inositol, the dosage will differ depending upon both the objectives of supplements and the type of inositol taken. The below-recommended amounts are for powdered inositol supplements.

For the treatment of female-specific conditions such as PCOS or PMDD, scientifically reliable dosages range from 200-4000mg everyday. The more extreme the condition, the higher the recommended dose of inositol.

For behavioral and neurological conditions, therapeutic dosages vary from 6-18g everyday.

If inositol soft gel supplements are utilized, around 30% of the recommended powdered dosage is thought about equivalent.

What are inositol negative effects?

Adverse effects associated with inositol supplementation are rare, and typically limited to moderate indigestion in uncommonly high dosages. Other side effects reported might include feeling “wired”, anxious, jittery, insomnia, yellow urine, and palpitations. Research study has not yet evaluated the security and effectiveness of inositol during pregnancy, so do not utilize while pregnant unless advised by a doctor.

Are There Any Medications or Supplements I Shouldn’t Take With Inositol?

There is currently no adequate proof that inositol supplements trigger negative interactions with any other drugs and supplements. Nevertheless, phytic acid– the kind of inositol found in foods– may disrupt the absorption of minerals, particularly calcium, zinc, and iron.

Should you be supplementing with Inositol?

Individuals with PCOS, type 2 diabetes, depressive and/or stress and anxiety disorders will probably gain from an inositol supplement. Research study has revealed that women benefit from inositol supplementation for health conditions as mild as PMS or as serious as PCOS, in addition to the conditions mentioned in the benefits area. Men, however, might just see benefits when supplementing for the specific conditions mentioned in the benefits area. [7]


The following dosages have been studied in scientific research study:.

By mouth:

  • For panic disorder: 12 to 18 grams per day.
  • For obsessive-compulsive condition: inositol 18 grams each day.
  • For treating signs connected with polycystic ovary syndrome: D-chiro-inositol 1200 mg each day.
  • For treating lithium-related psoriasis: 6 grams daily. [8]

Special Safety Measures and Warnings

Pregnancy: Inositol is perhaps safe when taken by mouth, short-term. Dosages of as much as 4000 mg of myo-inositol daily have actually been utilized with obvious safety.

Breast-feeding: There isn’t adequate trustworthy information to understand if inositol is safe to utilize when breast-feeding. Remain on the safe side and avoid usage.

Children: Inositol is potentially safe when taken by mouth for approximately 12 weeks in children ages 5-12 years old. [9]


Inositol is a really appealing treatment for depression and panic attack. It is promising for bipolar illness, stress and anxiety, fixation, compulsion, eating disorders, hostility, unhappiness, tension and tiredness. It is quite safe. Adjunctive use may not benefit but will not hurt. People with bipolar illness ought to work out higher caution. [10]


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