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Head-to-head evidence comparison — which supplement is right for you?
Zinc wins 1 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
5 of 5 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
21 of 26 studies with measurable effects showed benefit.
Top outcomes
250-500mg daily for general support; up to 1500mg for therapeutic use
With meals containing fat, Before or with fatty meals
TUDCA capsules (pure tauroursodeoxycholic acid)
15-30mg daily
With meals
Zinc picolinate or zinc citrate
4-8 weeks
1-2 weeks
8-12 weeks
2-4 weeks
2-4 weeks
4-8 weeks
Immediate
The bile acid TUDCA and neurodegenerative disorders: An overview
Life sciences (2021) · Systematic review
The tauroursodeoxycholic acid (TUDCA), one of the acids found in bear bile, is a hydrophilic bile acid and naturally produced in the liver by conjugation of taurine to ursodeoxycholic acid (UDCA).
Nutraceutical, Dietary, and Lifestyle Options for Prevention and Treatment of Ventricular Hypertrophy and Heart Failure
International journal of molecular sciences (2021) · Systematic review
The potential advantages of whole-food plant-based diets, moderation in salt intake, avoidance of phosphate additives, and regular exercise training and sauna sessions are also discussed.
Trial of Sodium Phenylbutyrate-Taurursodiol for Amyotrophic Lateral Sclerosis
The New England Journal of Medicine (2020) · Rct · n=137
A total of 137 participants were randomly assigned in a 2:1 ratio to receive sodium phenylbutyrate-taurursodiol (89 participants) or placebo (48 participants).
Efficacy of Zinc Supplementation in the Management of Primary Dysmenorrhea: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=739
Zinc supplementation significantly reduced pain severity compared to placebo (Hedges's g = -1.541; 95% CI: -2.268 to -0.814; p < 0.001), representing a clinically meaningful reduction in pain.
Effects of Daily Zinc Alone or in Combination with Other Nutrient Supplements on the Risk of Malaria Parasitaemia: A Systematic Review and Meta-Analysis of Randomised Controlled Trials
Nutrients (2023) · Meta analysis · n=1339
The effect sizes, represented as risk ratios (RRs) with 95% confidence intervals (CIs), were standardised by transforming them into log RRs and then pooling them using a fixed-effects or random-effects model depending on the heterogeneity across studies.
Prevalence of Zinc Deficiency in Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis
Nutrients (2022) · Meta analysis · n=806
Pooled analyses by the IBD subgroup showed a total population of 1677 with CD, for an overall mean zinc deficiency prevalence of 54% and 95% confidence intervals (CI) ranging from 0.51 to 0.56, versus 41% (95%CI 0.38-0.45) in the UC population (n = 806).
Based on one phase 3 RCT in ALS showing modest functional improvement and systematic reviews suggesting neuroprotective effects. Effect size is conservative given single disease population study and limited human data for other neurological conditions.
Based on meta-analyses showing reduced respiratory tract infections and improved immune markers (CD3/CD4). Effects primarily in deficient individuals. Take with food to reduce nausea risk.
AI-estimated from published studies. Interpret as directional guidance.
Zinc has a higher evidence score (8.5/10 vs 6/10) and wins in 1 of 3 categories.
No known interactions between TUDCA and Zinc have been documented in our database. However, always consult a healthcare provider before combining supplements.