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NOW Foods Psyllium Husk Caps 500 mg bottle
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NOW Foods Psyllium Husk Caps 500 mg Review

A dietary supplement designed to support digestive health and promote regularity. As a soluble fiber, psyllium husk can help maintain gastrointestinal regularity and is often used to relieve occasional constipation.

Product Focus: Regularity: Long-Term ReliefAlso graded for:Weight and Metabolism for WomenDigestion and BloatingAlso covers:Digestion
Tier ⓘ
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Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
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How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
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Biohacker Mentions
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Cost per month
$18 at 3 servings
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Study, Trial or Testing Result Summary

MembersHuman studies

Psyllium is the main ingredient here, and the label gives 4.5 grams a day across three servings, which is the smallest amount that in studies. A review of 16 trials in 1,251 adults with long-term constipation found sixty-six percent on fiber, psyllium, compared with forty-one percent on control, with than 10 grams a day for at least 4 weeks . …

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Review Totals and Summary

Members34,199 reviews
34,199 reviews · Amazon 29,367 · IHerb 4,647 · Walmart 132 · Swanson 42 · Nowfoods 8 · Fruitfulyield 3

NOW Foods Psyllium Husk Caps 500 mg has attracted a number of real user reviews across platforms like Amazon, iHerb, and Walmart, reflecting experiences. customers the capsules’ effectiveness in supporting regular digestion and occasional constipation, mentioning that they noticed with continued use. …

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Biohacker Summary

MembersWhat our biohacker panel says

Of the nine panelists who spoke about psyllium, the main ingredient, four it, two use it, two give , and the rest are or , so the panel leans favorable but unanimously. People take it mainly for soluble fiber that forms a gel, to cholesterol, steady blood sugar, constipation, support gut , slow digestion before meals, and move microplastics through the gut. …

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RAL Summary

MembersThe tier and why

This product is placed on the reviews tier because nine in ten of its ratings are , and human trials support psyllium for long-term constipation.

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More Details

MembersBody systems · Combine with · Possible side effects

Body systems: Digestive system. Combine with and possible side are for members.

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Supplement Facts

Soluble Fiber 1 g · Insoluble Fiber 0.1 g · Psyllium Husk Powder 1.5 g (1,500 mg)
Supplement Facts
Serving Size 3 Veg Capsules
Servings Per Container 166
Amount Per Serving% Daily Value
Calories5
Total Carbohydrate1.3 g<1%
Dietary Fiber1.1 g4%
Soluble Fiber1 g†
Insoluble Fiber0.1 g†
Psyllium Husk Powder (Husk/Seed)1.5 g (1,500 mg)†
* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.

Directions: Take 3 capsules with 8 oz. glass of liquid 2 to 3 times daily.

Label source: the brand's label · Report a label change

Where to Buy

NOW Foods · iHerb · Swanson
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Our articles on this subject

Graded October 23, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.