Taurine Dosage Calculator
A semi-essential sulphur amino acid that declined 80% in blood by old age. A 2023 Science paper identified taurine deficiency as a hallmark driver of ageing — and supplementation extended lifespan by 10–12% in mice.
What is Taurine?
Taurine (2-aminoethanesulfonic acid) is the most abundant free amino acid in the body, found in high concentrations in muscle, brain, heart, and retina. Despite longstanding clinical use in Japan for cardiovascular disease, its profound role in ageing biology was not appreciated until Singh et al. published a landmark 2023 study in Science (PMID 37289908) demonstrating that: (1) taurine levels in blood decline by ~80% between youth and old age in mice, monkeys, and humans; (2) this decline is a driver of ageing (not merely a correlation) — taurine-deficient mice aged faster across multiple parameters; (3) taurine supplementation in aged mice extended median lifespan by 10–12% and significantly improved multiple healthspan markers including bone density, muscle strength, immune function, reduced fat accumulation, and mitochondrial function. Taurine's mechanisms of action are broad. It is an osmolyte (regulating cell volume and hydration), a mitochondrial membrane stabiliser (incorporated into mitochondrial tRNA as τm5s2U, essential for mitochondrial protein translation), a neuromodulator (GABA-B receptor agonist and glycine receptor positive modulator), a cytoprotective antioxidant (conjugates with bile acids and scavenges hypochlorous acid), and a regulator of intracellular calcium handling in cardiac and skeletal muscle. The decline in circulating taurine with age is attributed to reduced endogenous synthesis (declining cysteine sulfinic acid decarboxylase activity) and increased renal clearance. Notably, taurine is synthesised from methionine and cysteine — diets rich in animal protein maintain higher taurine levels, which may partly explain why omnivores show lower all-cause mortality than strict vegans in some cohort analyses.
How to Take Taurine
**General longevity / healthspan maintenance:** 500–1,000 mg/day. This restores plasma taurine levels toward youthful concentrations in most adults. **Anti-aging research dose (consistent with the Singh 2023 mouse-to-human scaling):** 1,000–3,000 mg/day in 2–3 divided doses. The human equivalent dose from the mouse study (which used 1 g/kg body weight in mice, adjusted via allometric scaling) corresponds to approximately 3–6 g/day in humans — the upper end of this range overlaps with doses used in cardiovascular clinical trials (3 g/day for heart failure). Taurine is water-soluble and stable. It can be dissolved in water or taken in capsules with any meal. Unlike many amino acids, it does not compete for transport with other amino acids and can be taken at any time.
Timing Recommendations
No critical timing requirement. Some users split into morning and evening doses for more consistent plasma levels. Pre-workout dosing (500–1,000 mg, 60 minutes before exercise) is supported by evidence showing taurine reduces exercise-induced oxidative damage and improves endurance performance by 1.7% in meta-analysis.
Potential Side Effects & Safety
Taurine is exceptionally safe. It is a naturally occurring amino acid with an extensive clinical history — used at 3–6 g/day in cardiovascular clinical trials for decades without serious adverse events. The only notable pharmacological interaction is with lithium: taurine may increase renal lithium excretion, potentially reducing lithium plasma concentrations in patients taking it for bipolar disorder. GI effects are minimal even at high doses.
Who should avoid Taurine?
Lithium users: taurine may reduce plasma lithium levels — monitor with your psychiatrist. Otherwise, no significant contraindications have been identified in healthy populations. Vegans have chronically lower taurine levels (taurine is absent from plant foods) and are among the highest-priority groups for supplementation.
Best Stacks with Taurine
Taurine + magnesium glycinate for synergistic cardiac and neuromuscular support (both stabilise membrane potential). Taurine + NMN + spermidine covers the autophagy, NAD⁺, and polyamine ageing pillars. For athletic performance: taurine + creatine + beta-alanine addresses the three primary mechanisms of high-intensity exercise capacity.
Scientific References
All dosage recommendations are grounded in peer-reviewed research.
- 1Taurine deficiency as a driver of aging
Science · 2023
- 2
Taurine Dosage Calculator
Fixed dosage — independent of body weight
Your recommended daily dosage
Formula: 500–1,000 mg/day (maintenance) | 1,000–3,000 mg/day (anti-aging / longevity protocol)
Safety notes
- One of the safest supplements available — used at 3–6 g/day in cardiology for decades.
- Vegans and vegetarians: taurine is absent from plant foods; you are likely significantly deficient.
- Lithium users: taurine may reduce lithium plasma levels — inform your psychiatrist.
- No upper tolerable intake limit established; toxicity has not been reported in humans at supplemental doses.
This calculator provides general guidance only. Always consult a qualified healthcare professional before starting any supplement.