Best Psyllium Husk Supplements 2026: Cost per Effective Dose
10 g of psyllium fiber costs $0.46 to $4.69 at list price across every size of the 14 psyllium powders, husks and capsules we price. Plain powder and whole husk cost least; capsules cost the most per gram. 1 of the 14 is on a public testing list: our pick.
By Erin Rose Updated October 12, 2026 How we score
Take psyllium with a full glass of water. Do not take it if you have trouble swallowing. Take other medicines 2 hours before or after. All cautions
What psyllium costs, best value first
| Product and size | Per 10 g | A serving |
|---|---|---|
| Viva Naturals Organic Psyllium Husk Powder 24 oz tub, list $24.99, 4 g of fiber in 1 teaspoon (5 g)No testing list found | $0.46 | $0.18 |
| NOW Whole Psyllium Husks 16 oz tub, list $15.99, 7 g of fiber in 2 level tablespoons (10 g)No testing list found | $0.51 | $0.36 |
| Member's Mark 100% Psyllium Husk Fiber Capsules 800-capsule bottle, list $17.98, 2 g of fiber in 5 capsulesNo testing list found | $0.56 | $0.11 |
| Yerba Prima Psyllium Whole Husks 12 oz tub, list $19.99, 4.5 g of fiber in 1 rounded tablespoon (5 g)No testing list found | $0.65 | $0.29 |
| Organic India Psyllium Whole Husk 12 oz tub, list $18.99, 4 g of fiber in 1 tablespoon (5 g)No testing list found | $0.70 | $0.28 |
| Konsyl Daily Psyllium Fiber Powder 60-serving bottle, list $25.99, 5 g of fiber in 1 teaspoon (6 g)NSF/ANSI 173 | $0.87 | $0.43 |
| Metamucil 4-in-1 Psyllium Powder, Original Texture, with Sugar 114-serving bottle, list $29.99, 3 g of fiber in 1 rounded teaspoon (7 g)No testing list found | $0.88 | $0.26 |
| Metamucil 4-in-1 Psyllium Powder, Sugar-Free Orange 113-serving bottle, list $29.99, 3 g of fiber in 1 rounded teaspoon (5.8 g)No testing list found | $0.88 | $0.27 |
1 of the 14 are on a public testing list (NSF, USP or Informed, searched September 22, 2026 to October 6, 2026). To choose by need, see the best psyllium, scored; other fiber types are on the fiber cost page.
Why per 10 g of fiber?
A serving can be a teaspoon, a tablespoon, 5 capsules or 3 gummies, and each holds a different amount of fiber. Per 10 g of fiber compares them fairly. In constipation trials, more than 10 g a day worked and 10 g or less did not (BDA 2025). Psyllium capsules hold about half a gram each, so they can’t reach 10 g a day within their labels; for that, use a powder.
Amazon sets its own prices. If its price is lower than the list price here, your cost is lower too.
Sources
- Prices: each brand’s own list price, its regular one-time price, for every size it sells (Walgreens, iHerb, Vitacost or Sam’s Club where the brand sells nothing itself), checked October 6, 2026. We quote no Amazon prices; Amazon is only where the buy links go.
- Testing lists: NSF/ANSI 173, NSF Certified for Sport, Informed Choice, USP Verified and Informed Sport, searched September 22, 2026 to October 6, 2026.
Scores checked October 12, 2026.