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Taurine

Conditionally essential amino acid crucial for cardiovascular health, brain function, and cellular protection

Scientific nameTaurine FormulaC2H7NO3S Molecular weight125.15 g/mol CAS107-35-7
95 absorption score
9 safety / 10
20 USD per month
5 documented interactions

Check it against something

Evidence level B

Taurine with:

Compatibility score 86 out of 100
86 out of 100
Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Enhanced cardiovascular health

Supports healthy blood pressure, heart rhythm, and cardiac function

Regulates calcium, supports cardiac contractility, and has antiarrhythmic effects Evidence A-grade 2-8 weeks

Improved exercise performance and recovery

Enhances athletic performance and reduces exercise-induced fatigue

Improves calcium handling, reduces oxidative stress, and supports energy metabolism Evidence A-grade 1-4 weeks

Enhanced brain function and neuroprotection

Supports cognitive function and protects against neurological damage

Modulates neurotransmitters, protects against excitotoxicity, and supports brain development Evidence B-grade 2-8 weeks

Improved eye health and vision

Supports retinal health and may protect against eye diseases

High concentrations in retina, antioxidant protection, and cellular membrane stability Evidence B-grade 4-12 weeks

Enhanced cellular protection and longevity

Provides antioxidant protection and supports healthy aging

Stabilizes cell membranes, reduces oxidative stress, and supports mitochondrial function Evidence B-grade 4-16 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Every pair we checked

12 combinations scored by the engine
Taurine + Beta-Alanine May compete for taurine transporter Needs attention 54
Taurine + Creatine Monohydrate No documented interaction either way No known interaction 70
Taurine + Calcium Carbonate No documented interaction either way No known interaction 70
Taurine + Whey Protein No documented interaction either way No known interaction 70
Taurine + Lactase No documented interaction either way No known interaction 70
Taurine + Bovine Collagen No documented interaction either way No known interaction 70
Taurine + DHA No documented interaction either way No known interaction 70
Taurine + Turmeric No documented interaction either way No known interaction 70
Taurine + Magnesium Oxide Both support cardiovascular health and muscle function Works better together 78
Taurine + Coenzyme Q10 (CoQ10) Both support cardiovascular health and energy production Works better together 78
Taurine + Caffeine Enhanced endurance performance and reduced crash Works better together 78
Taurine + Vitamin D3 B6 required for taurine synthesis from cysteine Works better together 82

Dosage

With food
Daily1-3g
Cardiovascular health1-3g daily
Exercise performance1-3g pre-workout
General health500mg-2g daily
Therapeutic3-6g daily (medical supervision)

Before you take it

VeganYes

When to expect it

First Effects1-2 weeks for cardiovascular and exercise benefits
Peak Benefits4-12 weeks for sustained health and protective benefits
Deficiency DevelopmentWeeks to months with inadequate synthesis or intake
Toxicity OnsetVery rare, excellent safety profile

How to measure it

$80-150
MarkerPlasma taurine levels
Optimal40-100 μmol/L
Deficient below<20 μmol/L
FrequencyOnly if monitoring cardiovascular or neurological health

What people actually reported to the FDA

CAERS, 21 reports naming it as the suspect

Most reported effects

Vomiting 5
Hospitalisation 4
Nausea 4
Headache 3
Malaise 3
Named as the suspect 21 reports of 37 that mention it at all
Serious outcome 90% hospitalisation, emergency room or worse
Other Serious or Important Medical Event12
Hospitalization10
Visited Emergency Room6

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not
Absorption Very high 95 of 100 · best absorbed form of this compound
Delivered daily 1900 mg
Cost per 100 mg delivered $0.04 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented
+
Magnesium

Both support cardiovascular health and muscle function

Complementary effects on calcium regulation and heart health · level B
+
Coq10

Both support cardiovascular health and energy production

Complementary cardioprotective and mitochondrial effects · level B
+
B Vitamins

B6 required for taurine synthesis from cysteine

B6 is cofactor for taurine biosynthesis · level A

What not to take with Taurine

2 documented
!
Beta Alanine

May compete for taurine transporter

Competition for same cellular uptake mechanism · mild significance
!
Alcohol

Alcohol may deplete taurine levels

Increased excretion and oxidative stress · moderate significance

Medication interactions

Discuss these with a pharmacist before combining
blood-pressure-medications Moderate

May enhance blood pressure lowering effects

What to do: Monitor blood pressure

lithium Minor

May enhance lithium effects

What to do: Monitor lithium levels

digoxin Minor

May affect cardiac glycoside effects

What to do: Monitor cardiac function

Available forms

bioavailability compared
Taurine (Free Form) 95

Taurine (Free Form): Cardiovascular support, Exercise performance, Excellent safety, Well-researched

Food sources

before you supplement
Fish and seafood 30-70mg per 100g · 95
Meat and poultry 20-50mg per 100g · 95
Dairy products 2-8mg per 100g · 90
Energy drinks 400-1000mg per serving · 95

Too little

deficiency signs
  • Cardiovascular problems and arrhythmias
  • Poor exercise performance and recovery
  • Retinal degeneration and vision problems
  • Impaired brain development (in infants)
  • Poor fat digestion
  • Increased oxidative stress
  • Muscle weakness and fatigue

Too much

toxicity signs
  • Excellent safety profile:
  • Mild hypotension in sensitive individuals
  • Digestive upset with very large doses
  • Generally very well tolerated

Who benefits most

cardiovascular-health

Supports heart health, blood pressure, and cardiac function

1-3g daily (divided doses)
athletes-performance

Enhances exercise performance and reduces fatigue

1-3g pre-workout or daily
aging-longevity

Provides cellular protection and supports healthy aging

1-2g daily
brain-cognitive-health

Supports brain function and neuroprotection

1-2g daily
eye-health-vision

Supports retinal health and may protect against eye diseases

1-2g daily

Where to buy it

compare forms first

Look for Taurine at 1-3g per serving. The form that matters here is Taurine (Free Form).

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What else affects it

Beyond other supplements
!
Alcohol

Alcohol may deplete taurine levels

Increased excretion and oxidative stress

How it works

  • Regulates calcium homeostasis in cardiac and skeletal muscle
  • Modulates neurotransmitter activity and membrane stability
  • Provides antioxidant protection and reduces oxidative stress
  • Supports bile acid conjugation for fat digestion
  • Essential for normal retinal development and function
  • Involved in osmoregulation and cell volume control

Key findings

what the evidence supports
  • Effective for cardiovascular health and heart disease prevention
  • Improves exercise performance and reduces fatigue
  • Important for brain development and neuroprotection
  • Excellent safety profile with minimal side effects

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Taurine?

Documented effects: Enhanced cardiovascular health; Improved exercise performance and recovery; Enhanced brain function and neuroprotection; Improved eye health and vision. Supports healthy blood pressure, heart rhythm, and cardiac function

How much Taurine should you take per day?

The common daily range is 1-3g. By goal — cardiovascular health: 1-3g daily; exercise performance: 1-3g pre-workout; general health: 500mg-2g daily; therapeutic: 3-6g daily (medical supervision).

When is the best time to take Taurine?

With food. First effects are typically reported within 1-2 weeks for cardiovascular and exercise benefits.

What are the side effects of Taurine?

At excessive doses: Excellent safety profile:, Mild hypotension in sensitive individuals, Digestive upset with very large doses, Generally very well tolerated. Safety rating at normal doses is 9 out of 10.

What should you not take with Taurine?

Separate it from Beta Alanine, Alcohol by two to four hours. May compete for taurine transporter

Does Taurine interact with medications?

Documented interactions with blood-pressure-medications, lithium, digoxin. Discuss these with a pharmacist before combining.

How do you know if you need Taurine?

The marker is Plasma taurine levels, optimal range 40-100 μmol/L. Common deficiency signs: Cardiovascular problems and arrhythmias, Poor exercise performance and recovery, Retinal degeneration and vision problems, Impaired brain development (in infants).

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