{
  "dataset": "curcumin-bioavailability-comparison",
  "title": "Curcumin Absorption Forms Compared: bioavailability multiple, typical dose, and cost tier",
  "sourcePage": "https://verifiedsupplementdata.com/curcumin/bioavailability",
  "license": "CC BY 4.0",
  "licenseUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Verified Supplement Data (2026), Curcumin Bioavailability Comparison",
  "dateModified": "2026-10-18",
  "methodology": "bioavailabilityMultiple is the fold-increase in curcumin absorption versus plain/unformulated curcumin, taken only from a specific cited human pharmacokinetic study. Where no study we read compared the form with plain curcumin (Longvida, Theracurmin), the field is null. The multiples come from small studies at unequal doses, most run with the maker of each form, so they are not a ranking of benefit.",
  "forms": [
    {
      "name": "Plain curcumin (95% extract)",
      "aka": "Standardized curcuminoid extract, no absorption aid",
      "bioavailability": "Very low: none found in the blood after single doses up to 8,000 mg",
      "bioavailabilityMultiple": 1,
      "typicalDose": "About 1,000 to 1,500 mg of curcuminoids a day in joint trials",
      "bestFor": "The form most joint trials used; lowest cost per mg",
      "sideEffects": "Stomach complaints (NCCIH)",
      "costTier": "Low",
      "notes": "In a dose study of 24 healthy people, no curcumin was detected in serum after single doses of 500 to 8,000 mg (Lao 2006). The joint trials that compared curcumin with ibuprofen still used plain extract (Kuptniratsaikul 2014).",
      "catch": "One 24-person dose study; joint trials still used plain extract.",
      "pmid": "16545122"
    },
    {
      "name": "Curcumin + black pepper extract",
      "aka": "Piperine, BioPerine",
      "bioavailability": "About 2,000% higher in one small 1998 study",
      "bioavailabilityMultiple": 20,
      "typicalDose": "Labels pair about 1,000 mg of extract with 5 to 20 mg of piperine",
      "bestFor": "Lower cost absorption aid for people not taking medicines",
      "sideEffects": "In lab studies piperine blocks enzymes that clear many drugs (P-glycoprotein, CYP3A4)",
      "costTier": "Low",
      "notes": "Adding 20 mg of piperine to 2 g of curcumin raised blood levels by about 2,000% in healthy volunteers (Shoba 1998), a small, older study. The drug-enzyme effect is from lab work (Bhardwaj 2002), not a human interaction trial.",
      "catch": "One small 1998 study; piperine also slows how some drugs clear, in lab tests.",
      "pmid": "9619120"
    },
    {
      "name": "Meriva (curcumin phytosome)",
      "aka": "Curcumin bound to sunflower lecithin",
      "bioavailability": "About 29 times higher total curcuminoids in one study",
      "bioavailabilityMultiple": 29,
      "typicalDose": "1,000 mg of Meriva a day (about 200 mg of curcumin), as its own trials used",
      "bestFor": "An absorption form without black pepper extract",
      "sideEffects": "Stomach complaints (NCCIH)",
      "costTier": "Moderate to high",
      "notes": "Total curcuminoid absorption was about 29 times higher than unformulated curcumin in a crossover study whose authors included the form’s makers (Cuomo 2011). The authors noted blood levels were still below those needed for most lab effects.",
      "catch": "Study authors included the maker; levels stayed below lab-effective amounts.",
      "pmid": "21413691"
    },
    {
      "name": "BCM-95",
      "aka": "Curcumin with turmeric essential oils",
      "bioavailability": "About 6.9 times higher in a pilot crossover study",
      "bioavailabilityMultiple": 6.9,
      "typicalDose": "500 mg three times a day in its joint trial",
      "bestFor": "An absorption form without black pepper extract",
      "sideEffects": "Stomach complaints (NCCIH)",
      "costTier": "High",
      "notes": "Relative bioavailability was about 6.93 times plain curcumin in a small pilot crossover study linked to the maker (Antony 2008). Its joint trial gave 500 mg three times a day for 28 days (Shep 2019).",
      "catch": "Small pilot study linked to the maker.",
      "pmid": "20046768"
    },
    {
      "name": "Water-dispersible curcumin",
      "aka": "Curcumin with hydrophilic carriers",
      "bioavailability": "About 46 times higher in one study, at unequal doses",
      "bioavailabilityMultiple": 46,
      "typicalDose": "Per product label",
      "bestFor": "Low mg per dose",
      "sideEffects": "Stomach complaints (NCCIH)",
      "costTier": "Moderate",
      "notes": "In a head-to-head of four products, the water-dispersible form measured 45.9 times plain curcumin, but it was given at 376 mg of curcuminoids against 1,800 mg of plain curcumin, and the study was run by the sponsor’s contract lab (Jäger 2014).",
      "catch": "Given at 376 mg vs 1,800 mg of plain curcumin; sponsor-run lab.",
      "pmid": "24461029"
    },
    {
      "name": "Longvida and Theracurmin",
      "aka": "Solid lipid particle; colloidal dispersion",
      "bioavailability": "No comparison with plain curcumin in the studies we read",
      "bioavailabilityMultiple": null,
      "typicalDose": "Per product label",
      "bestFor": "Readers who already use them; we found no head-to-head figure to compare",
      "sideEffects": "Stomach complaints (NCCIH)",
      "costTier": "Moderate to high",
      "notes": "Theracurmin raised blood curcumin with dose in 6 volunteers at 150 and 210 mg, with no plain-curcumin arm. We did not find a Longvida study with a plain-curcumin comparison we could read.",
      "catch": "Theracurmin was tested in 6 people at 150 to 210 mg; we found no Longvida comparison.",
      "pmid": null
    }
  ],
  "citations": [
    "PMID:16545122",
    "PMID:9619120",
    "PMID:12130727",
    "PMID:21413691",
    "PMID:20046768",
    "PMID:24461029"
  ]
}