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Best Inositol Supplements – Top 10 Brands Reviewed for 2019

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In order to help you find a good inositol product, we’ve narrowed down the best inositol supplements on the market right now.

Top 10 Inositol Products Compared

1. Jarrow Formulas Inositol Powder

Jarrow Formulas Inositol Powder

Jarrow Formulas Inositol Powder is a pharmaceutical grade powder supplement free from wheat, gluten, soy, dairy, egg, shellfish, peanuts and treenuts. It is well reviewed by consumers, and affordable. The powder has little flavor, and mixes well.

Specs

  • 600mg inositol powder
  • ¼ teaspoon per serving
  • 378 servings per container
  • Free from many allergens
  • Vegan
  • Good customer reviews
  • Mixes well
  • Affordable

Who Makes It?

Jarrow Formulas was founded in Los Angeles, California in 1977 by Jarrow L. Rogovin. The company has grown a lot since then, and now offers products to countries throughout Europe, Asia, Latin America, and the Middle East.

Bottom Line

This pharmaceutical grade inositol supplement is affordable, vegan and free from many allergens. It has little flavor, mixes well and offers a large quantity of servings. This is the top inositol supplement available on the market right now.

Where to Get It
amazon-logo-newer

2. NOW Foods Inositol

NOW Foods Inositol

NOW Foods Inositol is a gel capsule that offers 500mg per pill for an affordable price. It is gluten-free and made in a Good Manufacturing Practices (GMP) certified facility by a reliable brand.

Specs

  • 500mg inositol
  • One pill per serving
  • 100 servings per container
  • Affordable
  • Gluten-free
  • Free from many allergens
  • GMP-certified
  • Good customer reviews

Who Makes It?

NOW Foods is a well-known natural supplement brand that has been around for 50 years. The company offers vitamins, minerals, essential oils and other nutritional supplements, all made in GMP-certified facilities. The company typically uses non-GMO and organic ingredients.

Bottom Line

This is an affordable and quality inositol supplement made in a GMP-certified facility. It is free from gluten, soy, milk, eggs, fish, shellfish or tree nuts, and made by a reliable brand.

Where to Get It
amazon-logo-newer

3. BulkSupplements Pure Inositol

BulkSupplements Pure Inositol

BulkSupplements Pure Inositol is a powder that can be mixed in your favorite drink. It has a slightly sweet flavor characteristic of the supplement, and mixes well. It is offered in bulk at an affordable price free from any added ingredients.

Specs

  • 600mg inositol
  • ¼ teaspoon serving
  • 1666 servings per bag
  • Bulk quantity
  • GMP-certified
  • Affordable
  • Pure, free from added ingredients
  • Good customer reviews
  • Mixes well

Who Makes It?

BulkSupplements is a supplement ingredient supplier that sells to both consumers and producers. It offers products in quantities from grams to metric tons. The company has over 400 products available, and they are made in an FDA registered GMP-certified manufacturing and distribution facility.

Bottom Line

This is one of the best inositol supplements available, offered in bulk quantity at an affordable price. It is pure inositol, free from added ingredients.

Where to Get It
amazon-logo-newer

4. Nature’s Way Choline and Inositol

Nature's Way Choline and Inositol

Nature’s Way Choline and Inositol is a blend of equal parts inositol and choline. Choline is a natural, essential nutrient that plays a role and the production of the acetylcholine – a neurotransmitter involved in memory, mood, muscle control and the nervous system.

Specs

  • 500mg inositol
  • 500mg choline
  • Serving size two capsules
  • 50 servings per container
  • Free from preservatives
  • No yeast, milk, wheat or soy
  • Affordable
  • Good customer reviews

Who Makes It?

Nature’s Way is a one of the first major brands to be given the TRU-ID certification. It shows that products have been tested by a third party and proven to contain exactly what the label states. The company was founded in 1969 and now offers a large variety of products.

Bottom Line

This is one of the best available inositol supplements, if you are looking for a blend that includes choline. It is free from many allergens and preservatives, offered at an affordable price and made by a reliable brand.

Where to Get It
amazon-logo-newer

5. Solgar Choline/Inositol

Solgar Choline Inositol

Solgar Choline/Inositol is an affordable, vegetarian blend of inositol and choline. It is free from gluten, wheat and dairy.

Specs

  • 500mg inositol
  • 500mg choline
  • Two capsules per serving
  • 50 servings per container
  • Vegetarian
  • Free from gluten, wheat and dairy
  • Affordable
  • Contains additional ingredients

Who Makes It?

Solgar is a reliable brand that offers vitamins, minerals and herbs as nutritional supplements. Founded in 1982, the company continues to create innovative nutritional formulas to support health.

Bottom Line

This is a good inositol supplement blended with choline, made by a good brand with a reputation. It is affordable, vegetarian and free from many allergens, but it does contain some additional ingredients.

Where to Get It
amazon-logo-newer

6. Source Naturals Inositol/Choline

Source Naturals Inositol Choline

Source Naturals Inositol/Choline is a supplement blend packed into a tablet taken once daily. It is free from a number of allergens and offered at an affordable price.

Specs

  • 400mg inositol
  • 400mg choline
  • One tablet per serving
  • 100 servings per container
  • Free from many allergens
  • Vegetarian
  • Affordable
  • Good reviews
  • Contains additional ingredients

Who Makes It?

Source Naturals is a vitamin and herbal supplement provider founded in 1982. The brand is known for being one of the first to blend nutraceuticals, herbals and nutrients into one formula.

Bottom Line

Some may want an affordable, quality blend of inositol and choline, which Source Naturals Inositol/Choline definitely provides. However, it does contain additional ingredients.

Where to Get It
amazon-logo-newer

7. Pure Encapsulations – Inositol (Powder)

Pure Encapsulations Inositol Powder

Pure Encapsulations Inositol Powder offers pure, potent inositol doses of 4.1 grams per serving. This powder is high quality and hypoallergenic, and mixes well in water or other liquids.

Specs

  • 4.1 grams inositol
  • Serving size is two scoops
  • About 60 servings per container
  • Hypoallergenic
  • Potent dose
  • Mixes well
  • A bit expensive

Who Makes It?

Pure Encapsulations produces supplements backed by scientific research and designed to provide predictable results. Products are hypoallergenic and free from harmful additives and preservatives.

Bottom Line

Made by a well-respected brand that provides science backed products, this pure inositol powder is a fabulous choice if you can afford it. It mixes well, it’s hypoallergenic and it offers a potent inositol dosage.

Where to Get It
amazon-logo-newer

8. Pure Science Vitamin B8 Inositol Capsules

Pure Science Vitamin B8 Inositol Capsules

Pure Science Vitamin B8 Inositol Capsules is a simple inositol supplement that offers 700mg per capsule. It is vegetarian, manufactured in a GMP-certified facility in the United States and supported by a 100% money back guarantee.

Specs

  • 700mg inositol
  • Serving size one pill
  • 100 pills per container
  • Vegetarian capsule
  • 100% money back guarantee
  • Made in the USA
  • GMP-certified
  • Few reviews
  • Brand specializes in herbals

Who Makes It?

Pure Science Supplements Limited labels itself a bio-technology research company. The company specializes in herbal products from the Asia Pacific region.

Bottom Line

This inositol pill provides a good dosage in a vegetarian capsule and is made in the USA in a GMP-certified facility. However, the company that produces it specializes in Asian Pacific herbal supplements, and there are few reviews on the product.

Where to Get It
amazon-logo-newer

9. Puritan’s Pride Inositol

Puritan's Pride Inositol

Puritan’s Pride Inositol provides a potent inositol dosage in vegetarian capsules. The pills can be taken by adults one to two times daily.

Specs

  • 1000mg inositol
  • One caplet per serving
  • 90 caplets
  • Vegetarian
  • Affordable
  • Potent dosage
  • Few reviews
  • Contains additional ingredients

Who Makes It?

Puritan’s Pride was founded in 1973 to provide customers quality health products at affordable, value pricing. It sources raw ingredients from around the globe, offering hundreds of different products.

Bottom Line

This potent, vegetarian inositol supplement is made by a reliable brand and sold at an affordable price. However, it has few reviews from consumers. On top of that, it does contain some additional ingredients.

Where to Get It
amazon-logo-newer

10. Jazzee Naturals Myo-Inositol for PCOS

Jazzee Naturals Myo-Inositol for PCOS

Zazzee Naturals Myo-Inositol for PCOS is a high-quality product that offers a powerful inositol dosage. It is 100% vegetarian, free from many allergens, mand in a GMP-certified facility in the United States and has great reviews.

Specs

  • 2000mg inositol
  • Four capsules per serving
  • 30 servings per container
  • Powerful dosage
  • 100% vegetarian
  • Made in the USA
  • GMP-certified
  • More expensive

Who Makes It?

Zazzee Naturals is a natural supplement producer currently in the midst of rebranding. It was originally called Jazzee Naturals.

Bottom Line

This is a high-quality inositol supplement offering a potent dosage. The company is so confident in the quality that it offers a money back guarantee. However, the quality comes with a bit of a higher price tag.

Where to Get It
amazon-logo-newer



Frequently Asked Questions About Inositol

What is Inositol?

Most foods contain a vitamin-like substance with potential for supporting female fertility and mental health.

The substance, often wrongly identified as a member of the vitamin B family, is found in highest levels in whole grains and citrus fruits, according to Examine.com (1).

It is called inositol and refers to a group of nine compounds with similar molecular structures.

The compound was initially discovered in 1850 by a German physician named Johanes Joseph Scherer. He identified and isolated it from meat (2).

For supplements, myo-inositol has been studied most, and is most commonly used because it is the body’s main form. Myo-inositol makes up 90% of cellular inositol (3).

Inositol can also be produced in the body, or made in a laboratory (4).

The substance has a number of forms, but the most common are myo-inositol and D-chiro-inositol.

One gram of stone ground wheat contains 11.5mg of inositol, dried prunes contains 4.7mg and navy beans 2.83mg, for example.

It may be useful for different purposes by helping to balance certain chemicals and helping insulin function.

It has been studied most for its therapeutic potential for Polycystic Ovarian Syndrome (PCOS), with at least 14 studies in the last ten years (5).

There have been at least 12 studies on insulin sensitivity, nine studies on the effects that inositol has on blood sugar, and nine studies on fertility.

What Are the Benefits of Inositol?

  • Polycystic Ovarian Syndrome (PCOS): Polycystic Ovarian Syndrome is a female hormonal disorder that is considered common. It causes enlarged ovaries with small cysts, and symptoms include menstrual irregularity, excess hair growth, acne and obesity. The cause is not well understood; however, inositol has been shown to be a good option (6). In a number of studies, inositol taken in the range of 200-4,000mg once daily before breakfast has been shown to notably improve the condition. In one study, 2,000mg daily for an average of 35 days was associated with improved fertility and period regulatory over the course of the following six months (7). Additionally, PCOS symptoms have been shown to be reduced – decreases in body weight were noted in a study, insulin sensitivity appears to be reliably improved according to another study and blood sugar and triglycerides seem to improve (8, 9).
  • Panic Disorder: Panic disorder is a kind of anxiety disorder that causes panic attacks. Such attacks are characterized by sudden feelings of terror when there is no real danger, loss of control and physical symptoms such as fast heartbeat and chest pain. Inositol supplementation is associated with reduced frequency of attacks, however usage during an attack does not appear to be effective. One study even found that taking 18 grams of inositol daily was associated with significantly reduced attacks, even more so than the drug fluvoxamine (10). However, more research is necessary.
  • Depression: Depression is a mood disorder that is often characterized by loss of interest in activities, social withdrawal, hopelessness, anxiety and other symptoms. Inositol may have some benefits for those with depression, according to a meta-analysis of 15 studies (11). Inositol had marginally better effects on those with depression than placebos in some studies and showed superior efficacy for patients with premenstrual dysphoric disorder (PMDD), an extension of premenstrual syndrome. Premenstrual dysphoric disorder can cause depression and mood swings. Overall, much more research is needed.

How Do I Take Inositol?

Inositol is typically taken at dosages between 200 and 4,000mg before breakfast (12).

When using inositol for neurological purposes, larger dosages seem to be necessary. For depressive symptoms, studies have used between 6 grams and 18 grams daily.

If taking a soft gel formulation, you only need 30% of the dosage (13).

Are There Any Side Effects of Inositol?

Inositol may cause side effects when taken in doses larger than 12 grams. These side effects may include gas, nausea, dizziness, tiredness and difficulty sleeping.

How Do I Pick a Good Inositol Product?

Inositol supplements come in powdered and pill forms.

The powdered form tends to have a slightly sweet flavor and is generally pure.

The pill form is easier to take on the go, and often tasteless.

When shopping for the best inositol supplement for you, start by deciding which form you prefer, and how high of a dosage you are looking.

When looking at the options, also factor in the brand that produces it – it is best to buy supplements from well-known, reputable brands.

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