{
  "dataset": "psyllium-cost-by-brand",
  "title": "Psyllium Supplements Compared — cost per gram of soluble fiber, form, and disclosure status",
  "sourcePage": "https://verifiedsupplementdata.com/psyllium/best-overall/",
  "license": "CC-BY-4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Verified Supplement Data (2026), Psyllium Cost Comparison",
  "dateModified": "2026-07-19",
  "methodology": "Only 3 of 7 products disclose soluble-fiber grams per serving directly on the label and independently confirmed for this session (NOW Psyllium Husk Powder, Konsyl Daily Psyllium, Metamucil 4-in-1 Sugar-Free) — costPerGramSoluble = price / (servings x soluble-fiber grams). The other 4 (Yerba Prima whole husk, Organic India, NOW Psyllium Husk Caps, Metamucil with-sugar) were verified for title and live price via the Amazon Creators API only, which does not return supplement-facts data, so their per-serving grams are disclosed as ESTIMATES pending a physical label check and are excluded from the ranked cost-per-gram figure (costPerGramSoluble: null), never silently estimated into it. costPerFdaDose projects costPerGramSoluble x 7g to show the daily cost of hitting the FDA-authorized soluble-fiber claim threshold (21 CFR 101.81: 7g/day of soluble fiber from psyllium husk, as part of a diet low in saturated fat and cholesterol, may reduce the risk of coronary heart disease). Capsule math: NOW's 500mg capsules require roughly 10 capsules to approximate a 5g psyllium dose — an illustrative estimate, not a label-confirmed serving direction. Dose spine: laxation ~5-10g/day, cholesterol ~7-10.2g/day (Anderson 2000's flagship meta used 10.2g/day adjunctive to diet), glycemic control ~10g/day dosed before meals (Gibb 2015 meta). SAFETY: take every dose with at least 8 fl oz (a full glass) of water — this is an FDA-label-mandated warning for bulk-forming fiber products, not optional guidance; psyllium can also reduce absorption of co-timed oral medications, so separate dosing by 2-4 hours. This statement has not been evaluated by the FDA; these products are not intended to diagnose, treat, cure, or prevent any disease.",
  "headline": {
    "productsCompared": 7,
    "disclosed": 3,
    "undisclosed": 4,
    "fdaClaimSolubleG": 7,
    "cheapestPerGramSoluble": 0.0618,
    "cheapestPerGramSolubleBrand": "NOW Foods",
    "priciestPerGramSolubleBrand": "Metamucil",
    "priceRatio": 1.68,
    "note": "Plain husk powder (NOW) is the cheapest cost per gram of disclosed soluble fiber. Capsules and branded/sweetened blends cost meaningfully more per effective gram — you are mostly choosing format and additives, not efficacy."
  },
  "columns": [
    "brand",
    "product",
    "slug",
    "form",
    "totalFiberGPerServing",
    "solubleFiberGPerServing",
    "servings",
    "price",
    "costPerServing",
    "costPerGramSoluble",
    "costPerFdaDose",
    "verdict"
  ],
  "units": {
    "totalFiberGPerServing": "g total psyllium fiber",
    "solubleFiberGPerServing": "g soluble fiber",
    "price": "USD",
    "costPerServing": "USD/serving",
    "costPerGramSoluble": "USD per gram of soluble fiber",
    "costPerFdaDose": "USD to reach the 7g/day FDA-claim dose"
  },
  "citations": [
    {
      "claim": "Meta-analysis of 8 controlled trials, 384 psyllium vs 272 placebo subjects, 10.2 g psyllium/day adjunctive to diet for >=8 weeks: LDL cholesterol lowered 7% (P<0.0001). Independent (VA Medical Center/University of Kentucky).",
      "source": "Anderson JW, et al. 2000, Am J Clin Nutr",
      "pmid": "10648260"
    },
    {
      "claim": "21 CFR 101.81: an FDA-authorized health claim allows a reduced coronary-heart-disease-risk statement at 7 g/day of soluble fiber from psyllium husk, as part of a diet low in saturated fat and cholesterol.",
      "source": "U.S. FDA, 21 CFR 101.81",
      "pmid": null
    },
    {
      "claim": "35 RCTs spanning 3 decades/3 continents: in T2DM patients, fasting blood glucose -37.0 mg/dL (P<0.001), HbA1c -0.97% (P=0.048), dosed before meals. COI: authors are Procter & Gamble Co. employees (P&G makes Metamucil) — disclose every time cited.",
      "source": "Gibb RD, McRorie JW Jr, et al. 2015, Am J Clin Nutr",
      "pmid": "26561625"
    },
    {
      "claim": "Multi-site double-blind RCT, n=170 chronic idiopathic constipation, psyllium 10.2 g/day vs docusate sodium 200mg/day, 2 weeks: psyllium significantly outperformed docusate on stool water content, weight, weekly output, and bowel-movement frequency. COI: 100% of authors are Procter & Gamble Company-affiliated.",
      "source": "McRorie JW, et al. 1998, Aliment Pharmacol Ther",
      "pmid": "9663731"
    }
  ],
  "products": [
    {
      "brand": "NOW Foods",
      "product": "NOW Psyllium Husk Powder, Organic (12 oz)",
      "slug": "now-foods-psyllium-husk-powder-7g",
      "form": "Powder",
      "totalFiberGPerServing": 7,
      "solubleFiberGPerServing": 6,
      "servings": 38,
      "price": 14.1,
      "costPerServing": 0.37,
      "costPerGramSoluble": 0.0618,
      "costPerFdaDose": 0.43,
      "verdict": "disclosed",
      "note": "7g total psyllium fiber, 6g soluble, per 9g (1 tbsp) serving — disclosed on label. One serving nearly clears the FDA 7g/day soluble-fiber claim threshold.",
      "certification": "Non-GMO Project Verified, USDA Organic"
    },
    {
      "brand": "Konsyl",
      "product": "Daily Psyllium Fiber Powder (19 oz)",
      "slug": "konsyl-daily-psyllium-fiber-5g",
      "form": "Powder",
      "totalFiberGPerServing": 5,
      "solubleFiberGPerServing": 3,
      "servings": 90,
      "price": 25.99,
      "costPerServing": 0.29,
      "costPerGramSoluble": 0.0963,
      "costPerFdaDose": 0.67,
      "verdict": "disclosed",
      "note": "5g total psyllium fiber, 3g soluble, per 6g (1 tsp) serving — disclosed on label. Single-ingredient, unflavored.",
      "certification": "Single-ingredient psyllium husk"
    },
    {
      "brand": "Metamucil",
      "product": "4-in-1 Psyllium, Sugar-Free (72 servings)",
      "slug": "metamucil-4in1-sugar-free-psyllium",
      "form": "Powder (sugar-free, stevia)",
      "totalFiberGPerServing": 3.4,
      "solubleFiberGPerServing": 2.4,
      "servings": 72,
      "price": 17.97,
      "costPerServing": 0.25,
      "costPerGramSoluble": 0.104,
      "costPerFdaDose": 0.73,
      "verdict": "disclosed",
      "note": "3.4g total psyllium fiber, 2.4g soluble, per serving — disclosed on label. Sugar-free (stevia-sweetened). Same psyllium content as the with-sugar SKU in the same product line; the only difference is the sweetener.",
      "certification": "None listed"
    },
    {
      "brand": "NOW Foods",
      "product": "NOW Psyllium Husk Caps, 500mg (500 Veg Capsules)",
      "slug": "now-psyllium-husk-caps-500mg",
      "form": "Capsule",
      "totalFiberGPerServing": 500,
      "solubleFiberGPerServing": null,
      "servings": 500,
      "price": 23.09,
      "costPerServing": 0.05,
      "costPerGramSoluble": null,
      "costPerFdaDose": null,
      "verdict": "undisclosed",
      "note": "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.",
      "certification": "None listed"
    },
    {
      "brand": "Metamucil",
      "product": "Psyllium Husk Powder, Unflavored Original, with Sugar (114 servings)",
      "slug": "metamucil-psyllium-husk-powder-with-sugar",
      "form": "Powder (with added sugar)",
      "totalFiberGPerServing": 3.4,
      "solubleFiberGPerServing": null,
      "servings": 114,
      "price": 26.99,
      "costPerServing": 0.24,
      "costPerGramSoluble": null,
      "costPerFdaDose": null,
      "verdict": "undisclosed",
      "note": "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.",
      "certification": "None listed"
    },
    {
      "brand": "Organic India",
      "product": "Whole Psyllium Husk Powder (12 oz)",
      "slug": "organic-india-psyllium-husk-12oz",
      "form": "Powder",
      "totalFiberGPerServing": 5,
      "solubleFiberGPerServing": null,
      "servings": 68,
      "price": 18.97,
      "costPerServing": 0.28,
      "costPerGramSoluble": null,
      "costPerFdaDose": null,
      "verdict": "undisclosed",
      "note": "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.",
      "certification": "USDA Organic (per brand listing)"
    },
    {
      "brand": "Yerba Prima",
      "product": "Psyllium Whole Husk, Untreated (12 oz)",
      "slug": "yerba-prima-psyllium-whole-husk-12oz",
      "form": "Whole husk (coarse)",
      "totalFiberGPerServing": 5,
      "solubleFiberGPerServing": null,
      "servings": 68,
      "price": 19.99,
      "costPerServing": 0.29,
      "costPerGramSoluble": null,
      "costPerFdaDose": null,
      "verdict": "undisclosed",
      "note": "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.",
      "certification": "None listed"
    }
  ]
}