What is myo-inositol?
Myo-inositol is a vitamin-like substance that occurs naturally in the body and in many foods. It is the most common form of inositol in the body and plays an important role in cell signaling, insulin signaling, and several processes linked to hormonal function. Myo-inositol is often used as a dietary supplement by women who want to support hormone balance, the menstrual cycle, and fertility.
What does myo-inositol do in the body?
Myo-inositol acts as part of the body’s cellular signaling system and is involved, among other things, in signaling from insulin and certain hormones. It occurs naturally in the body’s tissues and is found in particularly high concentrations in, among other places, the brain and the ovaries. Myo-inositol has therefore been studied in areas such as insulin sensitivity, hormonal function, ovulation, and fertility.
What is myo-inositol used for?
Myo-inositol is primarily used to support hormonal function, fertility, and normal insulin signaling. It is a common supplement for women with PCOS (polycystic ovary syndrome), where myo-inositol has been studied for its relevance to, among other things, the menstrual cycle, ovulation, and insulin response. Myo-inositol has also been studied for its role in the nervous system and in the signaling of neurotransmitters such as serotonin.
Myo-inositol’s effects
Myo-inositol participates in cellular signaling and is involved, among other things, in how the body responds to insulin. In women with PCOS, myo-inositol has been studied for its potential to support insulin sensitivity, hormonal balance, regular ovulation, and normal ovarian function. Myo-inositol is also involved in nervous system signaling and has therefore been studied in areas such as mood, stress, and well-being.
Myo-inositol dosage
A dose of myo-inositol can vary depending on the product and area of use. Greatlife’s Myo-Inositol provides 500 mg of myo-inositol per recommended serving.
How and when should you take myo-inositol?
Myo-inositol can be taken at any time of day and can be taken with or without food. With regular use, the most important thing is to take it consistently according to the product’s recommended dosage. Myo-inositol can also be combined with, for example, folate, vitamin D, and magnesium.
Myo-inositol side effects
Myo-inositol is generally well tolerated. Some people may experience mild gastrointestinal discomfort, especially at higher doses. This may include nausea, gas, or loose stools. The discomfort is usually mild.
Pros and cons of myo-inositol
Myo-inositol is a naturally occurring substance involved in several important processes in the body, including cell communication and insulin signaling. It is particularly well studied in connection with PCOS, hormonal function, and fertility. Myo-inositol is generally well tolerated, but higher doses may cause mild gastrointestinal discomfort in some individuals.
Best myo-inositol
A good myo-inositol supplement should contain pure myo-inositol and as few unnecessary additives as possible. Greatlife’s Myo-Inositol contains pure myo-inositol and is completely free from sugar, sweeteners, dairy, soy, gluten, and GMOs. The product also contains no artificial colorings or unnecessary fillers.
Why only myo-inositol?
We have switched to 100% myo-inositol, and therefore D-chiro-inositol is no longer included in the product. That does not mean it has become less relevant; on the contrary, myo-inositol is the most prevalent form of inositol in the body and the form most central to several processes linked to hormonal balance, ovulation, and insulin sensitivity. Myo-inositol is well studied as a single ingredient, especially in connection with PCOS, where it has been shown to support normal insulin response, metabolic health, and regular ovulation. It is also a natural and gentle option if you want to give your body balanced support without using a more complex combination of different inositol forms. One advantage of pure myo-inositol is that you get a clear, simple, and controlled formula. Because the body itself converts some myo-inositol to D-chiro-inositol when needed, a supplement with 100% myo-inositol can be a logical choice for those who want to support the body’s own regulatory systems in a gentle way. The new product contains 500 mg of myo-inositol per capsule, which makes it flexible and easy to adjust. It is a good starting dose, especially if you want to begin cautiously or prefer more gradual support. The dosage also makes it easy to increase intake stepwise if needed.
Myo-inositol is the dominant inositol form in the body’s tissues and plays an important role in the cells’ signaling systems.
- Myo-inositol functions as part of the body’s insulin-related signaling, which makes it relevant for normal glucose metabolism and insulin sensitivity.
- In PCOS, insulin resistance is common, and myo-inositol has been studied for its ability to support insulin response and metabolic balance.
- In studies, myo-inositol has been linked to improved ovulatory function and more regular menstrual cycles in women with PCOS.
- Myo-inositol is particularly interesting because the body can, when needed, convert some myo-inositol to D-chiro-inositol through enzymatic processes.
- A pure myo-inositol product provides a simple and controlled supplement without adding a fixed amount of D-chiro-inositol that may not suit everyone.
- Some researchers believe that the balance between myo-inositol and D-chiro-inositol may be important in ovarian tissue, and that too much D-chiro-inositol is not always desirable in all contexts.
- Myo-inositol occurs naturally in the body and is also found in certain foods, which makes it a physiologically familiar option.
- Myo-inositol is generally well tolerated and is often used by people who want gentle support for hormonal and metabolic health.
- As a single ingredient, myo-inositol is easy to dose, combine with other nutrients, and tailor to individual needs.
- Myo-inositol can be a good option for people who want to start gently and build up the dosage gradually.
Myo-inositol is therefore the physiologically familiar main form. It is well studied even as a single ingredient and gives you flexibility without locking the dosage to a fixed amount of D-chiro-inositol. A 2024 systematic review describes that insulin resistance is common in PCOS and that inositol may have insulin-related effects. BMJ Open Heart also describes that D-chiro-inositol is formed from myo-inositol via an insulin-dependent mechanism, which supports the reasoning of myo-inositol as the key foundational form of inositol.
