NOW Foods Inositol Powder Vegetarian 1 lb

What it is

NOW Foods Inositol Powder is a single-ingredient dietary supplement in a 1 lb (454 g) jar, supplying 730 mg of myo-inositol in each 1/4 level teaspoon serving. The jar holds about 622 servings. The front label describes it as vegetarian/vegan and carries a Non-GMO mark, and the Supplement Facts panel lists its other ingredients as "None" — the powder is the product, with nothing added to bulk it out, bind it or flavor it.

This is the largest jar in the NOW inositol powder line, sitting above the 2 oz, 4 oz and 8 oz bottles. It is a plain white wide-mouth canister with a screw cap, labeled in the orange and white NOW livery. You can find it alongside the rest of our supplements and the wider vitamins range.

What's inside

The panel lists exactly one thing: Inositol Powder, 730 mg per serving. There is no proprietary blend, no carrier and no excipient list to decode — unusual enough on a supplement shelf to be worth saying plainly.

Inositol is a carbohydrate-like compound that nutrition references group with the B-complex family. The label notes that dietary sources include both animal and plant foods, so it is a nutrient people already meet through an ordinary diet rather than something exotic. The label also classifies it as non-essential, which is a technical category rather than a comment on how useful it is: it means no dietary requirement has been set for it.

That classification explains a line on the panel that puzzles people. Beside the 730 mg figure the label prints a double asterisk and, underneath, "Daily Value not established." A Daily Value is a reference figure set by regulators for nutrients with an established requirement. Inositol has none, so there is no percentage to print, and the panel says so rather than leaving the column blank. To compare how different manufacturers present panels like this one, the NIH keeps a searchable Dietary Supplement Label Database of label transcriptions.

The form in this jar is myo-inositol, which the label identifies as the most abundant of the forms this nutrient takes. Naming the form matters on an ingredient that has more than one, and here it is printed on the front rather than buried in small type.

Supplement Facts

Those numbers corroborate one another: 730 mg across about 622 servings comes to roughly 454 g, the net weight printed on the front. A panel whose serving size, count and net weight all reconcile supports the single-ingredient description.

How to use it

The label's suggested usage is to take 1/4 level teaspoon daily, dissolved in water or other suitable beverage. That is the whole of the printed direction — there is no loading phase, no second serving and no timing instruction attached to it.

Two notes come straight off the pack: store the jar in a cool, dry place after opening, and do not eat the enclosed freshness packet — it is a desiccant, not food.

The label also flags that natural color variation may occur in this product, so a jar that looks slightly different in shade from a previous one is expected rather than a fault.

Why the 1 lb size

At one serving a day, a 1 lb jar of about 622 servings is roughly a twenty-month supply, which changes how you should store it rather than how you use it. A jar this size stays open far longer than a small bottle, so the "cool, dry place" instruction does more work here than on any smaller size. Fine powders draw moisture from humid air, so a cupboard away from the stove, kettle and sink is a better home for it than a shelf above any of them.

The front label also prints "This product is sold by weight not volume." That line answers the question people actually have when they open a large jar: the container looks under-filled. Powders settle in transit, and the quantity you are buying is the 454 g printed on the front, not the level the powder happens to sit at. Use a measuring spoon rather than eyeballing it, because a 1/4 teaspoon of settled powder and a 1/4 teaspoon of fluffed powder are not the same weight.

Who it's for

This jar suits adults who already know they want inositol powder and would rather buy it in bulk than repurchase a small bottle every couple of months. The powder format lets you measure the labeled serving into whatever you are already drinking, which some people prefer to swallowing capsules.

It is not the obvious starting point for a first-time buyer: a twenty-month quantity is a lot of powder to own before you know the format suits you, and the smaller bottles exist for that reason. Browse our health and wellness section for those.

The product is for adults only. If you are pregnant or nursing, taking any medication, or managing a medical condition, the label directs you to consult a physician before use — and that is worth doing rather than skipping. The NCCIH publishes general guidance on what to weigh before taking any supplement, and the NIH Office of Dietary Supplements has a plain-language primer on what you need to know about dietary supplements.

Good to know

The allergen statement on the panel has two halves, and both matter. This product is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. It is, however, produced in a GMP facility that processes other ingredients containing these allergens. If you react at trace levels, that second sentence is the one to weigh.

NOW states on the pack that the product is packaged and quality tested in the USA, and the company address printed on the panel is NOW Foods, 395 S. Glen Ellyn Rd., Bloomingdale, IL 60108, USA. NOW's brand material names Intertek as the certifying body behind its GMP certification and shows the Intertek GMP mark. The label also prints "Family owned since 1968" above the Supplement Facts panel.

NOW's brand material additionally lists categories the company excludes from its products: aspartame, sucralose and acesulfame potassium; hydrogenated oils; parabens; artificial colors; irradiated ingredients; and unlabeled common allergens. As a free-from checklist, that is a useful summary of what is absent.

The asterisks on this label mark structure/function statements, a specific regulated category of supplement labeling. The FDA explains how those differ from other claim types on its structure/function claims page.

Keep out of reach of children.

Frequently Asked Questions

How much inositol is in each serving?

Each 1/4 level teaspoon serving contains 730 mg of inositol powder, in the myo-inositol form. The 1 lb (454 g) jar holds about 622 of those servings, and the panel lists no other ingredients alongside it.

Is this powder suitable for vegetarians and vegans?

Yes — the front label states "Vegetarian/Vegan" and the jar also carries a Non-GMO mark. Because the panel lists no other ingredients, there are no binders, capsule shells or coatings to check.

Why does the jar look like it isn't full?

The label states that the product is sold by weight not volume, so the 454 g net weight is the quantity you are buying regardless of the fill level. Powder settles during shipping, which leaves headspace at the top of a large jar.

How should I store a jar this size?

Store it in a cool, dry place after opening and keep the cap closed firmly between servings. Leave the enclosed freshness packet in the jar, and do not eat it — it is a desiccant, not part of the product.

How is this order packaged for delivery?

Orders are shipped in plain, unmarked outer packaging with no product imagery or descriptive wording on the outside. It will not show the Gear Isle name.

Product information compiled and reviewed by the Gear Isle product team. We transcribe supplement facts directly from manufacturer packaging. Found an error? Tell us.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Dietary supplement for adults 18 and over. Consult a licensed healthcare professional before use, especially if you have a medical condition, heart concerns, or take prescription medication (including nitrates). Keep out of reach of children.