NOW Psyllium Husk Caps 500 mg provide a useful example of why the largest number on the front of a bottle is not always the number to enter in a fiber log. The manufacturer lists 500 mg of psyllium husk per capsule, while its three-capsule serving provides 1.1 g of dietary fiber.

Our review uses NOW’s public product page and Supplement Facts table. It is not a laboratory assessment or a record of personal use. CoreAge Rx retains the disclosed first commercial position on this site; NOW appears here because its published amounts help readers examine ingredient weight, dietary fiber, serving count, and cost without treating those measurements as clinical rankings.

Read the three quantities together

The manufacturer’s facts table specifies three vegetable capsules per serving. It lists 1.5 g, or 1,500 mg, of psyllium seed husk for that serving. Separately, the dietary-fiber line is 1.1 g, consisting of 1.0 g soluble and 0.1 g insoluble fiber. Those are related entries, but they are not interchangeable.

Multiplying the front-label 500 mg by three correctly produces the ingredient weight. Calling the resulting 1.5 g “dietary fiber” would still be incorrect. When tracking the nutrient, use the nutrient line. When comparing ingredient identity or discussing a formulation with a pharmacist, keep the ingredient amount available as a different fact. The label guide covers that distinction in more detail.

Dividing 1.1 g by three yields about 0.37 g dietary fiber per capsule. That derived figure can help compare label density, but it does not change the three-capsule serving printed in the facts table or authorize a new regimen. A mathematical unit conversion is not a dosing instruction.

A 200-capsule bottle is not 200 servings

The page lists a 200-capsule size with 66 servings and a 500-capsule size with 166 servings. At three capsules per complete serving, 200 capsules make 66 full servings with two capsules left over. The larger count similarly yields 166 complete servings with two left. Fractional arithmetic and complete labeled servings should be named clearly so shoppers know what they are comparing.

The 200-capsule option displayed $18.99 when checked. Dividing that price by 66 complete servings gives approximately $0.29 per serving before tax or delivery. This is a snapshot of the manufacturer’s displayed offer, not a promise about every seller or future checkout. Our bottle-cost explainer makes the rounding convention explicit.

Neither 66 servings nor 166 servings means that many days for every person. NOW’s separate suggested-use text describes a frequency beyond a single daily serving. This publication does not select a personal frequency. Confirm the directions and professional advice that apply to you before estimating duration or deciding whether a large bottle is useful.

What the ingredient list adds

The other ingredients are hypromellose for the capsule and vegetable-source stearic acid. The page warns that traces of sesame may be present and describes a facility that processes other ingredients containing listed allergens. A “veg capsule” description addresses the capsule format; it should not be stretched into a guarantee about every possible sensitivity.

The label is more informative for this comparison than a broad claim such as “natural.” An ingredient can have a plant origin and still require attention to allergies, swallowing, liquid intake, or medicines. If any warning is relevant, bring the actual label to a qualified professional instead of relying on a review’s summary.

Liquid is part of the instructions

NOW’s suggested-use text describes three capsules with an 8 oz glass of liquid, two to three times daily. We report that wording to distinguish the directions from the facts-table serving; we are not prescribing that schedule. The manufacturer also warns against taking the product without enough liquid or when swallowing is difficult.

Psyllium guidance from MedlinePlus explains the need for adequate fluid and highlights medicine interactions. The water-and-medicines article helps organize a discussion about those issues. If a clinician has limited your fluids, the correct next step is to review suitability rather than discard either instruction.

How to weigh the regularity claim

The brand describes support for regularity and gastrointestinal health. Psyllium has a recognized bulk-forming role, but a review of public labeling cannot predict an individual response or identify the cause of ongoing constipation. We did not compare this finished product with another brand in a controlled test.

The FDA’s supplement information also matters when interpreting quality language. Dietary supplements do not undergo FDA premarket approval for safety and effectiveness. A manufacturer’s facility or quality statement is not the same as an independent, lot-specific report that this publication has reviewed.

Where NOW fits in this shortlist

NOW is an alternative for readers who want a plainly quantified psyllium-and-fiber panel to examine. That observation is narrower than saying it is the best treatment or the right product for everyone. Someone who cannot comfortably use capsules may need a different format or a clinical discussion before any purchase.

Compare this label with the Full House review, where the listed quantity describes an entire blend, and the Yerba Prima review, where the selected product has a different serving and capsule material. The meaningful comparison preserves those distinctions. It does not treat a low cost, high capsule count, or familiar ingredient as proof of a better health outcome.

THE PAPER TRAIL

Sources for this article

  1. NOW — Psyllium Husk Caps 500 mg

    Three capsules: 1.5 g psyllium, 1.1 g dietary fiber (1.0 g soluble, 0.1 g insoluble). Selected 200-count/66-serving option displayed $18.99. Sesame-trace notice.

  2. MedlinePlus — Psyllium

    Psyllium as a bulk-forming laxative, fluid needs, precautions, specific medicine intervals, and adverse symptoms. Ingredient/medicine context, not validation of every reviewed supplement blend.

  3. FDA — Daily Value on nutrition and supplement labels

    Current dietary-fiber Daily Value is 28 g. Explains the reference and percent Daily Value; not individualized supplement directions.

  4. FDA — Using dietary supplements

    Supplements do not receive FDA premarket approval for safety and effectiveness. Healthcare-professional discussion and information limits.

Checked September 24, 2026. Confirm current labels and terms. Editorial policy · Commercial disclosure.