{
  "dataset": "glycine-cost-by-brand",
  "title": "Glycine Supplements Compared — cost per gram and per 3 g dose",
  "sourcePage": "https://verifiedsupplementdata.com/glycine/best-overall/",
  "license": "CC BY 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Verified Supplement Data (2026), Glycine Cost Comparison",
  "dateModified": "2026-07-14",
  "methodology": "Glycine is a single free-form molecule identical across brands, so the meaningful comparison is price per gram. Cost per gram = live Amazon price divided by total grams of glycine per container (servings x glycine mg per serving). Cost per 3 g dose = cost per gram x 3, matching the dose used in the sleep research and in ConsumerLab's 2025 independent test. Testing reflects each label's stated third-party/GMP status.",
  "headline": {
    "productsCompared": 8,
    "cheapestPer3gDose": 0.1,
    "priciestPer3gDose": 1.17,
    "spreadMultiple": 11.8,
    "note": "Same free-form glycine molecule; independently corroborated by ConsumerLab 2025 (9 cents to over $1.00 per 3 g dose)."
  },
  "columns": [
    "brand",
    "product",
    "form",
    "glycineMgPerServing",
    "servings",
    "totalGrams",
    "price",
    "costPerGram",
    "costPer3gDose",
    "testing"
  ],
  "units": {
    "glycineMgPerServing": "mg",
    "totalGrams": "g",
    "price": "USD",
    "costPerGram": "USD/g",
    "costPer3gDose": "USD"
  },
  "products": [
    {
      "brand": "BulkSupplements",
      "product": "Glycine Powder (1 kg)",
      "slug": "bulksupplements-glycine",
      "form": "Powder",
      "glycineMgPerServing": 3000,
      "servings": 333,
      "totalGrams": 999,
      "price": 32.97,
      "costPerGram": 0.033,
      "costPer3gDose": 0.1,
      "testing": "Third-party lab tested"
    },
    {
      "brand": "NOW Foods",
      "product": "Glycine Pure Powder (1 lb)",
      "slug": "now-glycine-powder",
      "form": "Powder",
      "glycineMgPerServing": 3000,
      "servings": 151,
      "totalGrams": 453,
      "price": 18.37,
      "costPerGram": 0.041,
      "costPer3gDose": 0.12,
      "testing": "GMP (NPA)"
    },
    {
      "brand": "Nutricost",
      "product": "Glycine Powder (1 lb)",
      "slug": "nutricost-glycine-powder",
      "form": "Powder",
      "glycineMgPerServing": 3000,
      "servings": 151,
      "totalGrams": 453,
      "price": 21.95,
      "costPerGram": 0.048,
      "costPer3gDose": 0.14,
      "testing": "Independent lab tested"
    },
    {
      "brand": "NOW Foods",
      "product": "Glycine 1000 mg Capsules (100)",
      "slug": "now-glycine-caps",
      "form": "Capsule",
      "glycineMgPerServing": 1000,
      "servings": 100,
      "totalGrams": 100,
      "price": 11.62,
      "costPerGram": 0.116,
      "costPer3gDose": 0.35,
      "testing": "GMP (NPA)"
    },
    {
      "brand": "Double Wood",
      "product": "Glycine 1000 mg (300 capsules)",
      "slug": "double-wood-glycine",
      "form": "Capsule",
      "glycineMgPerServing": 1000,
      "servings": 150,
      "totalGrams": 150,
      "price": 19.95,
      "costPerGram": 0.133,
      "costPer3gDose": 0.4,
      "testing": "Third-party tested"
    },
    {
      "brand": "NutraBio",
      "product": "Glycine Powder (150 g)",
      "slug": "nutrabio-glycine-powder",
      "form": "Powder",
      "glycineMgPerServing": 1000,
      "servings": 150,
      "totalGrams": 150,
      "price": 19.99,
      "costPerGram": 0.133,
      "costPer3gDose": 0.4,
      "testing": "Fully-disclosed label / COA"
    },
    {
      "brand": "Thorne",
      "product": "Glycine (250 capsules)",
      "slug": "thorne-glycine",
      "form": "Capsule",
      "glycineMgPerServing": 1000,
      "servings": 125,
      "totalGrams": 125,
      "price": 31,
      "costPerGram": 0.248,
      "costPer3gDose": 0.74,
      "testing": "Third-party certified"
    },
    {
      "brand": "Pure Encapsulations",
      "product": "Glycine (180 capsules)",
      "slug": "pure-encapsulations-glycine",
      "form": "Capsule",
      "glycineMgPerServing": 1500,
      "servings": 60,
      "totalGrams": 90,
      "price": 35,
      "costPerGram": 0.389,
      "costPer3gDose": 1.17,
      "testing": "NSF-audited GMP, hypoallergenic"
    }
  ]
}