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Inositol is a kind of sugar that influences both the body’s insulin response and several hormones related to mood and cognition. It’s often referred to as vitamin B8, but it is not in fact a vitamin. Inositol also has antioxidant homes that fight the damaging effects of complimentary radicals in the brain, circulatory system, and other body tissues.

Inositol is found naturally in cantaloupe, citrus fruit, and many fiber-rich foods (such as beans, wild rice, corn, sesame seeds, and wheat bran). It is likewise sold in supplement kind and utilized as a complementary therapy to deal with a wide range of medical conditions, including metabolic and state of mind conditions.

D-chiro-inositol, inositol hexaphosphate (typically referred to as “IP6”), and the compound myo-inositol are the most extensively utilized inositol supplements. They are usually thought about safe if taken properly.

This post goes over the potential health benefits and uses of inositol. It also covers dosage, preparation, possible negative effects, and interactions you need to consider prior to taking this substance.

Frequently Known As

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


Inositol is a word that jointly refers to molecules with a comparable structure, a collection of 9 stereoisomers. While the term ‘inositol’ is used typically with dietary supplements, it typically describes a specific stereoisomer called myo-inositol. Inositols are pseudovitamin compounds that are incorrectly said to come from the B-complex household, and are discovered in the majority of foods however in highest levels in entire grains and citrus fruits.

Myo-inositol reveals the most guarantee as a dietary supplement for promoting female fertility, bring back insulin level of sensitivity in circumstances of resistance (type II diabetes and polycystic ovarian syndrome being the most well examined), and for decreasing stress and anxiety too. Due to the combined advantages to insulin resistance and fertility, myo-inositol is considered an excellent treatment for PCOS in women.

It also holds some pledge as an anti-depressant (although not as impressive as its anxiolytic and anti-panic results) and against some other conditions related to anxiety such as panic disorders and binge eating. It is fairly inefficient for schizophrenia and autism, and has stopped working in treating PTSD regardless of its anti-panic effects.

In part because of its advantages to fertility and PCOS, along with the anxiolytic impacts possibly helping signs of PMS (dysphoria and anxiety mostly), myo-inositol is in some cases described as a basic female health supplement. At times, the anti-depressant impacts related to this supplement seem to just work in females with males having no advantage.

It is a very safe supplement to ingest, and all side-effects connected with myo-inositol are simply mild intestinal distress from high doses. High dosages (typically in the 12-18g variety) are needed for any neurological results while lower doses (2-4g) suffice for fertility and insulin sensitizing impacts. [2]


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

In PCOS, the administration of inositol has produced the remission of symptoms along with a decrease in male hormonal agent secretion9, a guideline of the cholesterol level, and a more effective fat breakdown which permit to a significant decrease on body mass and cravings.

In the cases of infertility, inositol has actually been proven to increase sperm count and motility, along with boost the general quality of oocytes and embryos.

In the brain, inositol has been revealed to produce an increase in serotonin receptor sensitivity. This activity produces an increase in GABA release. A few of the effects observed in the brain produced a relief in symptoms of stress and anxiety and obsessive-compulsive conditions. In high doses, it has actually been shown to even lower anxiety attack.

In cancer research study, inositol has gained interest as it can act as an antioxidant, anti-inflammatory and it appears to enhance immune properties.

System of action

The mechanism of action of inositol in brain conditions is not fully understood but it is thought that it may be associated with neurotransmitter synthesis and it is a precursor to the phosphatidylinositol cycle. The change that takes place in the cycle simulates when the postsynaptic receptor is activated but without activating the receptor. This activity provokes a phony activation which managed the activity of monoamines and other neurotransmitters.

Reports have actually revealed that insulin resistance plays a key role in the clinical advancement of PCOS. The presence of hyperinsulinemia can induce an excess in androgen production by stimulating ovaries to produce androgens and by lowering the sex hormone binding globulin serum levels. Among the systems of insulin deficiency is believed to be connected to a deficiency in inositol in the inositolphosphoglycans. The administration of inositol permits it to serve as a direct messenger of the insulin signaling and enhances glucose tissue uptake. This mechanism is theorized to its functions in diabetes treatment, metabolic syndrome, and weight-loss.

In cancer, the system of action of inositol is not totally comprehended. It is hypothesized that the administration of inositol increases the level of lower-phosphate inositol phosphates why can impact cycle regulation, development, and differentiation of deadly cells. On the other hand, the formation of inositol hexaphosphate after administration of inositol provides antioxidant characteristics by the chelation of ferric ions and suppression of hydroxyl radicals.


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

Volume of circulation

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

Protein binding

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

Metabolic process

It is believed that inositol is metabolized to phosphoinositol and then converted to phosphatylinositol-4,5- biphosphate which is a precursor of the second-messenger particles.25 Inositol can be changed to D-chiro-inositol by means of the actions of an epimerase. The normal modifications to inositol structure seem to be between all the different isomers.

Hover over items below to see reaction partners.

  • Inositol
  • Glucuronic acid
  • Path of removal
  • Most of the administered dosage is excreted in urine.


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


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

6 Things to Understand About Taking Inositol for PCOS

Polycystic ovary syndrome, or PCOS, is brought on by a hormone imbalance. It can cause associated illness, consisting of diabetes and infertility. Treatment with vitamin-like substances called inositols has shown promising results.

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

Inositol Enhances Insulin Resistance

Inositols are a type of sugar the body makes. They assist stabilize chemicals that control your blood sugar level and fertility. They also affect your metabolic process, the process of turning the food you eat into energy.

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

Inositols make particles associated with the body’s action to insulin. Researchers state inositols might be part of the body’s messaging system when the usual 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: Wild rice, whole wheat
  • Nuts: Almonds, walnuts

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

Inositols MI and DCI Are Beneficial For PCOS

There are nine types of inositol, however the two that have the biggest impact on PCOS are myo-inositol (MI) and D-chiro-inositol (DCI).

Usually, MI is transformed to DCI. However researchers believe people with PCOS may be less able to convert MI into DCI. Lower levels of DCI increase the danger of insulin resistance and high blood glucose.

High MI to DCI Ratio May Contribute to PCOS

In healthy women, most body tissue has an MI to DCI ratio of around 40 to 1. This ratio is much higher in people with PCOS.

Integrated treatment with MI and DCI is more reliable than taking either inositol alone. Particularly, research study shows a 40:1 MI/DCI ratio is best for rebooting ovulation in people with PCOS.

MI and DCI in a 40:1 ratio might be more reliable than Metformin. One research study discovered people with PCOS who took the 40:1 MI/DCI supplement had substantially 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 varying MI/DCI ratios. One review discovered that the MI to DCI ratio in PCOS items can range from as little as.04-to-1 to as high as 104-to-1.

Some supplements contain just DCI, while others consist of extra compounds such as vitamins and artificial sugars. There’s no evidence to reveal these active ingredients help.

The Right MI to DCI Ratio Improves Fertility

PCOS is a typical cause of infertility. Approximately 80% of individuals with PCOS experience infertility obstacles.

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

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

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

Egg quality: Women with PCOS have been revealed to produce less fully grown eggs than females without the disorder.12 Researchers have actually linked this to having too little MI in the follicular fluid, which surrounds the eggs within the ovaries.

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

Inositols can assist restore ovulation and improve oocyte (immature egg) quality. However scientists warn taking the right formulation is vital because high dosages of DCI adversely impact oocytes and avoid the body from taking in MI.

MI Is Utilized Reward Gestational Diabetes

People with PCOS have actually an increased danger of gestational diabetes (GD), which is diabetes that establishes in pregnancy. A research study published in 2019 concluded that individuals with PCOS have a two-fold greater risk of establishing GD than those without PCOS.

Taking MI supplements lowers blood sugar level levels and GD danger in people with PCOS. A 2012 research study found GD was less typical in pregnant women with PCOS who took MI than those who did not take the supplement. [4]


May Have Mental Health Benefits

Inositol may help stabilize essential chemicals in your brain, including those thought to affect your mood, such as serotonin and dopamine.

Interestingly, scientists have actually discovered that some individuals with anxiety, stress and anxiety and compulsive conditions have lower levels of inositol in their brain.

Though more research study is required, several research studies recommend that inositol has the possible to be an alternative treatment for mental health conditions. It also seems to have less adverse effects than traditional medications.

Panic attack

While research is still restricted, inositol supplements might be handy for treating panic disorder, a severe type of stress and anxiety.

Those with panic attack experience frequent panic attacks, which are sudden sensations of extreme worry. Symptoms consist of fast heart beat, shortness of breath, dizziness, sweating and a tingling or numb sensation in the hands.

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

Similarly, in a 4-week research study, people experienced fewer and less serious panic attacks when taking 12 grams of inositol daily.


Inositol may improve signs of anxiety, but research study has actually had actually blended results.

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

In contrast, subsequent research studies were unable to reveal any considerable advantages.

Overall, there is not enough evidence yet to state whether inositol has a real effect on anxiety.

Bipolar Disorder

Just like the other psychological health conditions, research on the effects of inositol and bipolar disorder is limited. However, the outcomes of preliminary studies appear promising.

For example, a little study in kids with bipolar spectrum conditions revealed decreased symptoms of mania and anxiety when a mix of 3 grams of omega-3 fats and as much as 2 grams of inositol were taken daily for 12 weeks.

In addition, studies suggest that 3– 6 grams of inositol taken daily may help in reducing symptoms of psoriasis brought on by lithium, a common medication used to deal with bipolar illness.


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

Might Help Control Metabolic Syndrome Threat Aspects

Medical research studies recommend inositol supplements may be beneficial for those with metabolic syndrome.

Metabolic syndrome is a group of conditions that raise your risk of persistent disease, consisting of cardiovascular disease and type 2 diabetes.

Specifically, 5 conditions are connected with metabolic syndrome:.

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

In a year-long medical research study in 80 ladies with metabolic syndrome, 2 grams of inositol taken two times daily lowered blood triglyceride levels by an average 34% and total cholesterol by 22%. Improvements in high blood pressure and blood sugar were also seen.

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


Inositol might assist control metabolic risk aspects by helping lower blood triglyceride levels, high blood pressure and blood sugar. It may also enhance cholesterol levels.

May Prevent Diabetes During Pregnancy

Some women experience high blood glucose during pregnancy. This condition is called gestational diabetes (GDM) and makes complex as much as 10% of pregnancies in the United States every year.

In animal studies, inositol has actually been directly connected to the function of insulin, a hormone that controls blood glucose levels.

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

However, more research study is needed, as other research studies have disappointed the same impacts.


Inositol might assist prevent high blood sugar levels during pregnancy when taken in mix with folic acid, but more research studies are needed to verify this result.

Other Potential Benefits

Inositol has actually been studied as a possible treatment option for lots of conditions.

Besides those currently mentioned, research suggests inositol may be useful in the list below conditions:.

Breathing distress syndrome: In preterm babies, inositol appears to be practical for treating breathing issues from underdeveloped lungs.

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

Obsessive-compulsive disorder (OCD): A little study recommends that 18 grams of inositol taken daily for 6 weeks may lower signs of OCD.


Inositol is a prospective treatment choice for preterm babies with breathing distress syndrome. It might likewise aid blood sugar control in people with type 2 diabetes and may reduce signs of obsessive-compulsive condition. [5]


Chemically inositols are isomers of hexahydroxy-cyclohexanes. Amongst the 9 possible geometrical isomers of inositol, seven are optically non-active or “meso,” and the staying 2 form a chiral set. The planar structures of the various isomers of this substance exist in Figure 1. The molecule of MI has one axial and five equatorial hydroxyl groups. The axial hydroxyl group at position 2 is most stable to hydrolysis.

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

In addition, this substance could also 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, two different kinds of substance are produced, the L-form by the artificial path and the D-form by the cyclic path (Parthasarathy and Eisenberg, 1986). However, both the isomers are catalyzed by IMPase (Eisesnberg, 1967), which produces MI. [6]

Sources of Inositol

As previously pointed out, inositol is discovered in naturally in certain foods but in relatively low levels. The highest levels of inositol are usually found in whole grains and citrus fruits.

Typical Food Sources.

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

Inositol is often marketed as vitamin B8– however, so is a compound called AMP (adenosine monophosphate). Be sure to try to find supplements particularly labeled inositol or myo-inositol.

Do I Required A Inositol Supplement?

Inositol is a psuedovitamin and not crucial for human function. However, as seen in long-term lithium therapy, inositol exhaustion can lead to psoriasis. Offered the appealing results of medical trials for conditions ranging from fertility problems and metabolic disorders to behavioral and neurological conditions, inositol supplementation ought to be offered strong consideration for anyone struggling with these conditions.

How Much Inositol Do I Need?

To experience maximum take advantage of inositol, the dosage will vary depending upon both the goals of supplementation 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, clinically effective does range from 200-4000mg daily. The more extreme the condition, the greater the advised dose of inositol.

For behavioral and neurological conditions, therapeutic doses vary from 6-18g daily.

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

What are inositol negative effects?

Negative effects associated with inositol supplementation are unusual, and typically restricted to mild stomach upset in unusually high doses. Other side effects reported may include feeling “wired”, anxious, jittery, sleeping disorders, yellow urine, and palpitations. Research has actually not yet evaluated the safety and effectiveness of inositol during pregnancy, so do not utilize while pregnant unless advised by a physician.

Exist Any Medications or Supplements I Should Not Take With Inositol?

There is presently no sufficient evidence that inositol supplements cause negative interactions with any other drugs and supplements. However, phytic acid– the form of inositol discovered in foods– might interfere with 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 conditions will probably take advantage of an inositol supplement. Research study has actually revealed that women gain from inositol supplements for health conditions as moderate as PMS or as severe as PCOS, in addition to the conditions discussed in the benefits section. Guy, nevertheless, might only see benefits when supplementing for the particular conditions pointed out in the advantages area. [7]


The following dosages have been studied in clinical research:.

By mouth:

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

Special Precautions and Cautions

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

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

Kids: Inositol is possibly safe when taken by mouth for as much as 12 weeks in kids ages 5-12 years of ages. [9]


Inositol is an extremely appealing treatment for anxiety and panic disorder. It is assuring for bipolar disorder, stress and anxiety, fixation, obsession, consuming disorders, hostility, unhappiness, stress and fatigue. It is quite safe. Adjunctive usage may not benefit but will not hurt. People with bipolar disorder ought to exercise greater care. [10]


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