Every study we read on this question

Trials in people (6)

• 4-week study in 46 older women with dementia: taurine drinks raised memory test scores
  Trial, not randomized201946 peoplePoints to benefit
• 4-week trial in 31 older women with dementia: taurine improved language and executive scores
  Randomized trial201931 peoplePoints to benefit
• 14-week trial in 48 women aged about 84: taurine and exercise gave mixed results
  Randomized trial201848 peopleMixed
• Trial in older adults with broken hips: taurine did not clearly change outcomes
  Randomized trial2015No difference
• 16-week trial in 24 women aged 55 to 70: taurine raised an antioxidant enzyme
  Randomized trial202224 peoplePoints to benefit
• Trial in healthy men and in rats: taurine raised blood vessel repair cell colonies
  Trial, not randomized2016Points to benefit

Population studies (2)

• Study of 560 German adults: urine taurine showed no clear link to memory tests
  Population study: one-time survey2026560 peopleNo difference
• Study of 575 older adults: higher body taurine production linked to worse thinking scores
  Population study: one-time survey2024575 peoplePoints to harm

Blood and genes (2)

• Study comparing taurine levels in young and older adults, with and without gum disease
  Blood level study2025No direction
• Gene study: taurine levels linked to 10 immune cell types, mixed in direction
  Gene study (Mendelian randomization)2024Mixed

Animal and cell (3)

• In mice, blood taurine did not clearly change with age, unlike glucose and lactate
  Animal study2025No difference
• In mice, taurine eye drops reversed lost eye stem cell function
  Animal study2025Points to benefit
• In lab-grown cells and mouse islets, taurine reduced signs of insulin-cell aging
  Cell study2025Points to benefit