Supplements · Diets
Do ketones switch off a key inflammation trigger?
The claim, precisely: exogenous ketones inhibits NLRP3 inflammasome
Yes for the acid form, but only shown in cells and mice — and the salt sold in supplements appears inert.
Evidence ladder
How far up the ladder this claim has climbed. A high consensus on a low rung means "consistent so far," not "proven in people."
Top evidence so far: Animal studies (Animal)
How the studies fall
What the evidence shows
BHB inhibits the NLRP3 inflammasome - but only the protonated ACID form; sodium-BHB (ketone salt) appears inert unless the medium is acidified. In-vitro only; no human supplement trial. Substantially undercuts the popular 'anti-inflammatory ketone salts' marketing.
The evidence (6)
| Source | Grade | Stance | Quality | Finding |
|---|---|---|---|---|
| Bai 2025 2025 · Redox Biol | animal | supports | moderate | [FT-verified] BHB ameliorates LPS liver injury via inflammasome inhibition (rodent); form-agnostic |
| (NLRP3 in-vitro) 2026 · (in-vitro) | in-vitro | supports | low | In-vitro: only acid-form BHB inhibits NLRP3; sodium-BHB salt inert at physiological pH |
| (NLRP3 in-vitro) 2026 · (in-vitro) | in-vitro | supports | high | NaBHB inert; only acid BHBA inhibits NLRP3 in mouse macrophages+human PBMC; FFAR3 enhances |
| Youm 2015 · Nat Med | in-vitro | supports | moderate | [FT-verified] Youm 2015 NatMed BHB blocks NLRP3 in macrophages/mice; landmark general mechanism |
| Goldberg 2017 · Cell Rep | in-vitro | supports | moderate | [FT-verified] Goldberg 2017 BHB deactivates neutrophil NLRP3; no salt-vs-acid distinction |
| Shippy 2020 · J Neuroinflammation | animal | supports | moderate | [FT-verified] Shippy 2020 5XFAD mice BHB cut plaque+caspase-1 via NLRP3. ANIMAL |
Educational only, not medical advice. Grades and scores reflect published evidence weighted by study design and quality; see the methodology.