Updated Jul 20, 2026 · by Felix Hesse · Verified by SAC team
Jul 20, 2026
Verified by SAC team
+10
XP on completion
NOW Foods Psyllium Husk Caps 500 mg, 500 veg capsules — from Amazon listing
Best value (soluble fiber)
NOW Foods · psyllium husk soluble fiber, 500 mg, 500 veg capsules

NOW Foods Psyllium Husk 500 mg Review

NOW Psyllium Husk is the value play among the evidence-backed fibers — the same satiety mechanism as the Metamucil pick (Brum 2016) at the lowest cost per serving on the list, thanks to a 500-count bottle. It's the workhorse of fibers: cheap, clean, and effective for what it does, Non-GMO Project Verified and vegan. It lands at #5 rather than #2 for two practical reasons — at 500 mg per capsule you need several to hit a meaningful pre-meal dose, and it lacks the specific brand pedigree of the exact product used in the trials. But the psyllium itself is identical in function. If you respond to fiber and want the cheapest sustainable supply, this is the smart re-buy. Take it with a full glass of water before meals and ramp up gradually. Here's the full breakdown.

Check on Amazon

Affiliate link — Super Achiever Club earns a small commission at no extra cost to you.

Read the complete Psyllium Husk guide →
▸ THE SCORE

How we built the SAC Product Score™8.4/10

Evidence for satiety40%8.4/10

Backed by the same psyllium satiety evidence as the Metamucil pick (Brum 2016): before meals it fills the stomach and slows emptying to reduce hunger. It scores a touch below #2 on this axis only because that trial used the branded Metamucil product specifically; the psyllium mechanism itself is identical.

Mechanism & dose25%8.2/10

Clear soluble-fiber mechanism, but the dose delivery is the limiting factor: at 500 mg per capsule you need several caps to reach a meaningful pre-meal fiber amount. The ingredient is right; the per-capsule fiber load is simply modest, as it is for any psyllium capsule.

Purity & testing20%8.6/10

Non-GMO Project Verified, vegan, and GMP-quality from a trusted brand — a clean single-ingredient soluble fiber with no proprietary blend. Solid, transparent quality for a hype-prone category.

Value (cost per serving)15%9/10

The best value on the list. A 500-count bottle drives the cost per serving to the lowest of any fiber here, making it the smart, sustainable re-buy for anyone who responds to psyllium and wants to keep costs down.

▸ SPECS

The product at a glance

Active
Psyllium husk soluble fiber, 500 mg per capsule
Dose
Several caps before meals with a full glass of water
Size
500 veg capsules — large supply
Bonus
Cholesterol support + regularity, like all psyllium
Quality
Non-GMO Project Verified, vegan, GMP-quality
Value
Lowest cost per serving on the list (500-count bottle)
▸ TRUTH CHECK

Marketing claims vs. reality

Verified

Psyllium fiber supports fullness before meals.

Supported by Brum 2016, which found psyllium before meals reduced hunger and raised fullness in two double-blind trials. This is the same psyllium mechanism, so the satiety claim holds — the appetite effect comes from the fiber, not the brand.

Verified

Non-GMO Project Verified, vegan, natural soluble fiber.

The product is a Non-GMO Project Verified, vegan, single-ingredient psyllium husk capsule from NOW, consistent with the listing and the brand's GMP-quality manufacturing.

Verified

Supports intestinal health and regularity.

Psyllium's regularity and digestive benefits are well established and recognized by health authorities. Accurate for this soluble fiber and a genuine bonus alongside the pre-meal satiety use.

▸ THE DEEP DIVE

What our test actually found

01Same fiber, lowest price — the honest value pick

NOW Psyllium Husk does exactly what the Metamucil pick does — the same soluble-fiber satiety mechanism (Brum 2016) — for the lowest cost per serving on the list. The 500-count bottle is the reason: it drives the per-dose price to the bottom of the category. For anyone who has confirmed they respond to psyllium and just wants the cheapest sustainable supply, this is the rational re-buy. You're not sacrificing the mechanism, only the branded pedigree of the studied product.

02The capsule count is the real trade-off

At 500 mg per capsule, you'll swallow several before a meal to reach a meaningful pre-meal fiber dose. That's the honest math on every psyllium capsule, and it's the main reason this sits at #5 rather than higher. If a handful of capsules per dose bothers you, a psyllium powder hits the same amount in one scoop. If you prefer no mixing and don't mind the count, the convenience and the huge supply make it easy to stick with.

03Clean, verified, and vegan

This is a Non-GMO Project Verified, vegan, GMP-quality single-ingredient fiber — no proprietary blend, no additives, no hype label. In a category full of dressed-up 'appetite' formulas, that plain honesty is a feature. You know exactly what you're taking, it's third-party verified for non-GMO status, and it's suitable for vegan diets, which not every capsule shell is.

04Bonus benefits come free with the fiber

Like all psyllium, this comes with well-established cholesterol-lowering and regularity benefits on top of the pre-meal satiety effect. That combination is something no herbal appetite pill can match, and it makes the low price look even better — you're getting three benefits from one cheap, clean fiber. Take it consistently with plenty of water before meals to get all of them.

▸ THE TRADE-OFFS

Pros & cons, no sugar-coating

Pros
  • Same psyllium satiety mechanism backed by Brum 2016 — fills the stomach, slows emptying
  • Huge 500-count bottle = the lowest cost per serving among the fibers
  • Non-GMO Project Verified, vegan, GMP-quality from a trusted brand
  • Bonus cholesterol and regularity benefits, like all psyllium
  • Clean single-ingredient fiber — no proprietary blend or additives
Cons
  • At 500 mg per cap you swallow several to reach a meaningful pre-meal fiber dose
  • Lacks the specific brand pedigree of the exact psyllium used in the trials
  • Must be taken with plenty of water; gas/bloating possible when you first start
▸ THE BOTTOM LINE

The value pick among the evidence-backed fibers — buy it for the cheapest sustainable supply, accept the cap count.

NOW Psyllium Husk is the value play among the evidence-backed fibers: the same satiety mechanism as the Metamucil pick (Brum 2016) at the lowest cost per serving on the list, thanks to a 500-count bottle. It's cheap, clean, and effective for what it does, Non-GMO Project Verified and vegan. It lands at #5 rather than #2 for two practical reasons — at 500 mg per capsule you need several to hit a meaningful pre-meal dose, and it lacks the specific brand pedigree of the exact product used in the trials. But the psyllium itself is identical in function. If you respond to fiber and want the cheapest sustainable supply, this is the smart re-buy. Take it with a full glass of water before meals and ramp up gradually.

Check NOW Foods · psyllium husk soluble fiber, 500 mg, 500 veg capsules on Amazon
▸ ALTERNATIVES

If this doesn’t fit — try these

▸ RESEARCH

Sources & further reading

  1. Brum 2016Brum JM, Gibb RD, Peters JC, Mattes RD · 2016 · Appetite · PMID 27166077

    Satiety effects of psyllium in healthy volunteers

    Two randomized, double-blind, placebo-controlled crossover trials in healthy adults. Psyllium taken before breakfast and lunch reduced inter-meal hunger and desire to eat and increased fullness versus placebo — the same soluble-fiber satiety mechanism this product delivers.

  2. Keithley 2005Keithley J, Swanson B · 2005 · Alternative Therapies in Health and Medicine · PMID 16320857

    Glucomannan and obesity: a critical review

    Critical review establishing the viscous soluble-fiber satiety mechanism — a gel that fills the stomach and slows gastric emptying — shared by psyllium and glucomannan as pre-meal fullness aids.