Best Psyllium 2026: Husk vs Capsules vs Metamucil, Cost per Gram
Informational summary — not medical advice. Prices are live Amazon prices, verified July 19, 2026; they change. This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Psyllium works, and as plain husk powder it's cheap — you're mostly choosing between format and additives, not efficacy. Ranked by cost per gram of disclosed soluble fiber, plain husk powder wins by a wide margin over capsules and branded blends. Top pick: NOW Psyllium Husk Powder, Organic (12 oz). Only 3 of 7 verified products disclose soluble-fiber grams on the label with enough confidence to rank precisely by cost per gram — the other 4 (whole husk, a clean-label alternative, capsules, and a with-sugar SKU) are shown separately, never silently estimated into the ranking.
As an Amazon Associate we earn from qualifying purchases. Ranked by disclosed soluble fiber and cost per gram, never commissions.
| Item | Value |
|---|---|
| NOW Foods | $0.062 |
| Konsyl | $0.096 |
| Metamucil | $0.104 |
The picks
NOW Psyllium Husk Powder, Organic (12 oz)
Plain organic psyllium husk powder: 7g total fiber (6g soluble) per serving — one serving nearly clears the FDA 7g/day soluble-fiber claim — at the lowest cost per gram of soluble fiber in this comparison. The most fiber, the least fuss, the best price. Start here.
Check price on Amazon →Konsyl Daily Psyllium Fiber Powder (19 oz)
A single ingredient — psyllium husk — with no flavoring or sweeteners, at 90 servings. Costs about double per gram of soluble fiber vs the top pick, but the choice if you want psyllium and absolutely nothing else.
Check price on Amazon →Metamucil 4-in-1 Psyllium, Sugar-Free (72 servings)
The best-known psyllium brand, sugar-free (stevia). Same evidence base as plain husk, less psyllium per serving (3.4g fiber vs 7g), and the highest disclosed cost per gram of soluble fiber here — the premium buys taste and convenience, not more fiber.
Check price on Amazon →The disclosed ranking — cost per gram of soluble fiber
These three disclose soluble-fiber grams directly on the label, so cost per gram is a real, computable comparison. We also show the cost to reach the FDA's 7g/day soluble-fiber claim dose — the number that actually answers "what does hitting the claim cost me?"
| Product | Form | Soluble fiber/serving | Price | Cost/g soluble | Cost per 7g FDA dose | |
|---|---|---|---|---|---|---|
| NOW Foods — NOW Psyllium Husk Powder, Organic (12 oz) | Powder | 6g | $14.10 | $0.062 | $0.43/day | Price → |
| Konsyl — Daily Psyllium Fiber Powder (19 oz) | Powder | 3g | $25.99 | $0.096 | $0.67/day | Price → |
| Metamucil — 4-in-1 Psyllium, Sugar-Free (72 servings) | Powder (sugar-free, stevia) | 2.4g | $17.97 | $0.104 | $0.73/day | Price → |
NOW Foods works out to about $0.06/gram of soluble fiber — roughly 2× cheaper than the priciest disclosed product (Metamucil) per gram of the identical nutrient. With psyllium, plain husk powder is the smart buy; you pay a real premium for flavor and brand, not more fiber.
The unconfirmed group — not ranked, not ignored
Four products were verified for live price and title via the Amazon Creators API, which does not return supplement-facts data, so their exact per-serving soluble-fiber grams are not independently confirmed this session. Rather than estimate them into a false-precision ranking, they're shown separately with what we do and don't know:
| Product | Form | Price | What's confirmed | |
|---|---|---|---|---|
| NOW Foods — NOW Psyllium Husk Caps, 500mg (500 Veg Capsules) | Capsule | $23.09 | 500mg psyllium husk per capsule is the confirmed per-capsule figure; grams of FIBER per capsule and the label's directed multi-capsule serving size are NOT confirmed against the physical Supplement Facts panel (Amazon API returns title+price only). costPerDay above is cost PER CAPSULE ($0.05), not a full dose — reaching a ~5g psyllium dose requires roughly 10 capsules (10 × 500mg = 5,000mg), which is a real cost and convenience penalty vs. a spoonful of powder; treat the 10-capsule figure as an illustrative estimate, not a label-confirmed serving direction. | Price → |
| Metamucil — Psyllium Husk Powder, Unflavored Original, with Sugar (114 servings) | Powder (with added sugar) | $26.99 | 3.4g psyllium fiber (2.4g soluble) shown here matches Metamucil's disclosed figure for its sugar-free sibling SKU in the same product line — it is NOT independently re-confirmed against this specific with-sugar SKU's own label, so it is excluded from the precise cost-per-gram-of-soluble-fiber ranking and shown as an estimate. Contains added sugar; the psyllium content is understood to be identical to the sugar-free version — the difference is sweetener/calories, not fiber. | Price → |
| Organic India — Whole Psyllium Husk Powder (12 oz) | Powder | $18.97 | Serving size and soluble-fiber grams are NOT confirmed against this product's Supplement Facts panel — the Amazon listing used to verify this product returns title and price only. Servings-per-container (68) is an ESTIMATE: 12oz (340g) net weight ÷ an assumed 5g teaspoon serving, the typical psyllium husk serving size on comparable products in this category. Excluded from cost-per-gram-of-soluble-fiber ranking pending label confirmation. | Price → |
| Yerba Prima — Psyllium Whole Husk, Untreated (12 oz) | Whole husk (coarse) | $19.99 | Serving size and soluble-fiber grams are NOT confirmed against this product's Supplement Facts panel — the Amazon listing used to verify this product returns title and price only. Servings-per-container (68) is an ESTIMATE: 12oz (340g) net weight ÷ an assumed 5g teaspoon serving, the typical psyllium husk serving size on comparable products in this category. Coarser whole-husk texture than fine powder, same psyllium source. Excluded from cost-per-gram-of-soluble-fiber ranking pending label confirmation. | Price → |
The capsule math NOW's psyllium capsules deliver 500mg of psyllium husk per capsule — a confirmed, label-stated figure. Reaching a typical ~5g psyllium dose takes roughly 10 capsules (10 × 500mg = 5,000mg). At $23.09 for 500 capsules ($0.046/capsule), that's roughly $0.46 for a single day's dose — several times what the equivalent amount of husk powder costs, for the same active source. This is an illustrative estimate (exact fiber content per capsule vs. whole husk material isn't separately disclosed), not a precise cost-per-gram figure, but the pill-burden problem itself is real regardless of the exact number. Full breakdown on husk vs powder vs capsules.
How we ranked
We don't rank by tub size or brand recognition. Two things decide it:
- Disclosure first. A product that doesn't disclose soluble-fiber grams can't be honestly ranked by cost per gram — guessing would manufacture false precision. Products with confirmed label data are ranked; the rest are shown with their actual gaps stated.
- Then cost per gram of soluble fiber. Soluble fiber is the nutrient behind the FDA cholesterol claim and most of the clinical evidence, so it's the honest ranking unit — not price per tub, and not total (soluble + insoluble) fiber.
What we deliberately ignore: "detox," "gut cleanse," and other front-label marketing not backed by disclosed fiber content, and big serving-size numbers that turn out to be mostly water weight or filler once you check the actual soluble-fiber gram count.
Frequently asked questions
What is the best psyllium supplement?
Plain psyllium husk powder for most people — NOW Psyllium Husk Powder discloses the most soluble fiber per serving at the lowest cost per gram. Konsyl for single-ingredient purity, Metamucil if you want flavor and are willing to pay roughly double per gram.
Are psyllium capsules a good deal?
Generally no — about 10 capsules are needed to approximate a 5g dose, a real cost and convenience penalty vs. a spoonful of powder. Reasonable only if you can't tolerate mixed psyllium's texture.
Is Metamucil worth the extra cost?
Same active ingredient as plain husk powder, with flavoring (and sugar or stevia). Costs meaningfully more per gram of soluble fiber while delivering less per serving. Fine if you value the taste; not the value pick.
Related
- Dosage Guide — how much by goal, plus the water rule
- Psyllium for Cholesterol — the FDA claim, explained
- Husk vs Powder vs Capsules — the full format breakdown
- All Psyllium Guides
- Best Fiber Supplement — if you're still deciding which fiber type, not just which psyllium product
Sources
- Anderson JW, et al. "Cholesterol-lowering effects of psyllium intake adjunctive to diet therapy in men and women with hypercholesterolemia: meta-analysis of 8 controlled trials." Am J Clin Nutr. 2000. PMID: 10648260
- U.S. FDA. "Health claims: Soluble fiber from certain foods and risk of coronary heart disease." 21 CFR 101.81.