Deep Dive into TAURINE (benefits, mechanisms, dosage)

About this video

• Video Title: Deep Dive into TAURINE (benefits, mechanisms, dosage)
• Channel: Ben Winney
• Speakers: Ben Winney
• Duration: 00:18:08

Overview

This video provides a comprehensive overview of taurine, explaining what it is, how it functions in the body, and its numerous potential benefits. The speaker also offers guidance on appropriate dosages and timing for supplementation.

Key takeaways

• Taurine's Unique Chemistry: Taurine is an amino acid with a sulfonic group, meaning it doesn't form proteins and remains a free amino acid. It is an osmolite, crucial for regulating cell volume.
• Dietary Sources and Deficiency: Primarily found in animal tissues, taurine is scarce in plant-based diets. While the body can synthesize some taurine, dietary intake is often necessary, especially for vegetarians and vegans.
• Widespread Bodily Functions: Taurine is abundant in the heart, skeletal muscle, retina, brain, and white blood cells, playing roles in cell volume regulation, mitochondrial function, antioxidant defense, calcium modulation, and immune response.
• Potential Health Benefits: Research suggests taurine may positively impact cardiovascular health (lowering blood pressure and triglycerides), metabolic health (improving glucose handling and insulin sensitivity), exercise performance and recovery, brain function (calming effects, neuroprotection), and potentially longevity.
• Dosage and Safety: Typical supplemental doses range from 1 to 3 grams per day, with 6 grams considered a safe upper limit. It is generally well-tolerated, though caution is advised for those on blood pressure medication or with kidney impairments.

Here is a numbered list of the claims made in the video:

1. Taurine has a massive range of effects in the body across different systems and seems useful for many health conditions.
2. Taurine is an amino acid with a sulfonic group instead of a carboxylic acid, meaning it doesn't get incorporated into proteins and remains a free amino acid.
3. Taurine is fully ionized and acidic, making it a chemically inert organic osmolite.
4. Osmolites are small, low molecular weight molecules that cells accumulate to regulate their volume.
5. Controlling cell volume (preventing swelling and shrinking) is an important role of taurine.
6. Endogenous synthesis of taurine from cysteine occurs, but the body's ability to synthesize it is low.
7. Taurine is a conditionally essential amino acid, meaning dietary intake is important.
8. Taurine is found almost exclusively in animal tissue, especially shellfish and dark meat.
9. Dark meat has more taurine than light meat because slow-twitch fibers rely on taurine for calcium regulation and antioxidant defense.
10. A chicken thigh has up to 14 times more taurine than a chicken breast.
11. Taurine is very water-soluble and doesn't bind to proteins, leading to loss during water-based cooking.
12. Cooking methods that minimize water loss (baking, frying, roasting) are best for preserving taurine.
13. A typical omnivore diet provides about 40 to 400 mg of taurine daily, often towards the lower end.
14. Supplemental doses of taurine are usually around 1 to 3 grams (1,000 to 3,000 mg) per day.
15. Taurine is not typically found in plants, except for some seaweeds like nori.
16. Vegans and vegetarians have very low dietary intake and lower plasma levels of taurine but don't become clinically deficient due to endogenous synthesis.
17. Vegans and vegetarians may miss out on many benefits of taurine.
18. Taurine is the most abundant free amino acid in many body tissues, particularly the heart, skeletal muscle, retina, brain, and leukocytes.
19. Taurine is essential for photoreceptor and retinal ganglion cell survival, making it important for eye health and vision.
20. Taurine has its highest cellular concentration in white blood cells, playing a role in the immune system and oxidative stress.
21. Taurine's high concentration in electrically excitable or highly oxidatively stressed tissues is likely due to its role in modulating calcium and stabilizing ion channels.
22. Taurine protects mitochondria from oxidative stress produced in highly active tissues.
23. Plasma taurine in the blood is a small fraction of total body taurine and is poorly representative of tissue taurine.
24. Blood tests for taurine can be misleading.
25. As an osmolite, taurine helps cells regulate their volume by moving in or out of the cell, preventing damage from swelling or shrinking.
26. This cell volume regulation is especially important in tissues like the brain.
27. Taurine attaches to mitochondrial transfer RNAs (tRNAs), aiding in the proper construction of the electron transport chain.
28. Proper construction of the electron transport chain by taurine is crucial for efficient ATP (energy) production.
29. A lack of taurine can lead to less ATP production and more superoxide generation due to electron leakage in a poorly assembled electron transport chain.
30. Low taurine causes oxidative stress, and taurine itself has antioxidant effects, not by directly scavenging radicals but by preventing their generation.
31. Taurine limits free radical generation by ensuring the electron transport chain is properly formed.
32. In heart muscle cells, taurine modulates calcium to tune muscle contractility toward normal.
33. In the liver, taurine conjugates with bile acids, making bile more water-soluble and improving fat emulsification and absorption.
34. Taurine is important for fat absorption and can help with issues related to bile flow.
35. Taurine has anti-inflammatory and antioxidant properties.
36. Taurine scavenges hypochlorous acid produced by neutrophils, forming the less toxic taurine chloramine.
37. Taurine detoxifies hypochlorous acid and protects tissue from damage.
38. Taurine chloramine is a signaling molecule that inhibits NF-kappaB activation and regulates inflammatory pathways (iNOS, TNF-alpha, IL-6, IL-8, prostaglandin production), thus reducing inflammation.
39. Taurine activates the Keap1/NRF2/ARE antioxidant pathway, protecting cells from oxidative damage and inflammation.
40. Taurine acts as a weak or partial agonist at GABA A and glycine receptors, which are inhibitory neurotransmitters that reduce neural firing and produce calming, anti-anxiety effects.
41. One of the best-supported benefits of taurine is in the cardiovascular system, particularly lowering blood pressure.
42. Taurine is thought to lower blood pressure by improving endothelium-dependent vasodilation and nitric oxide availability, reducing sympathetic vasoconstriction, and modulating calcium in vascular smooth muscle.
43. The failing human heart tends to be taurine-depleted.
44. Taurine can modestly lower blood pressure, comparable to minor lifestyle changes.
45. Taurine might slightly improve human heart function more generally.
46. Taurine can lower triglycerides in metabolically abnormal individuals.
47. Taurine seems to be beneficial for cardiovascular health.
48. Taurine is proposed to improve metabolic health and glucose handling by improving insulin signaling, protecting pancreatic beta cells, reducing ER and oxidative stress, reducing glycation, and improving liver glucose handling.
49. Taurine appears to improve insulin sensitivity in diabetics.
50. Taurine might reduce advanced glycation end products (AGEs) in humans.
51. In animals, taurine seems to affect satiety signaling and energy expenditure genes.
52. Taurine is proposed to improve exercise performance and recovery by improving muscle calcium handling, stabilizing membranes, buffering antioxidants, and regulating heat.
53. There is a small to moderate benefit of taurine for endurance exercise in humans.
54. Taurine works in the brain by modulating GABA-A and glycine receptors, reducing excitotoxicity, and protecting the brain from oxidative stress and inflammation.
55. Taurine crosses the blood-brain barrier through the taurine transporter, though it's a slow and regulated process.
56. Chronic oral or dietary taurine supplementation measurably raises brain taurine in animals.
57. Human data on taurine's effect on cognitive performance is inconclusive, possibly due to insufficient studies.
58. Anecdotally, many people report improved focus from taurine.
59. In animals, taurine reverses neurodegenerative deficits and protects against environmental toxins like volatile organic compounds and heavy metals.
60. Taurine definitely activates GABA-A and glycine receptors, producing a calming effect and calming overactive neurons.
61. In rats, taurine has anti-anxiety effects.
62. Anecdotally, many people report taurine helps calm them and relieve anxiety.
63. Taurine is proposed to extend lifespan and healthspan by reducing cellular senescence, DNA damage, improving mitochondrial function, and reducing inflammaging.
64. This has been demonstrated in animal studies.
65. Circulating taurine tends to decline with age in mice, monkeys, and humans.
66. Taurine supplementation in mice and worms extends median lifespan by about 10-12%.
67. Taurine supplementation improves healthspan in mice and monkeys.
68. The longevity evidence for taurine in animals is fairly strong.
69. Some studies have found that plasma taurine does not decline with age, or might stay flat or increase.
70. Plasma taurine is not a good measure of taurine within the tissue.
71. It's not clear overall whether taurine is anti-aging or not.
72. In rodent liver, taurine activates sirtuin 1 and AMPK, reducing liver damage and exerting antioxidant and anti-inflammatory effects.
73. In animals, taurine protects the kidney, likely through its antioxidant effects.
74. Taurine potentially benefits the liver and kidneys.
75. Taurine reduces inflammatory cytokines and generally reduces inflammation.
76. There is some evidence for taurine's anti-inflammatory effects in humans.
77. Taurine supports the normal immune response (in animals).
78. Taurine might reduce autoimmune issues or an overactive immune system in animals.
79. In mice, taurine trains the gut microbiota to resist pathogen colonization by fueling sulfide-producing bacteria.
80. This improves resistance to gut infection.
81. Taurine reduces experimental colitis and supports epithelial integrity in animal models.
82. Taurine could potentially be useful for people with inflamed guts or leaky gut.
83. The sulfide-producing bacteria that taurine feeds also make hydrogen sulfide.
84. Supplemental taurine could potentially worsen gut symptoms in people with bacterial overgrowth.
85. Some people unfortunately report gut issues with taurine supplementation.
86. Taurine raises testicular antioxidant enzymes and reduces oxidative damage in rodents.
87. In rats, taurine stabilizes hypothalamic GnRH tone and stimulates pituitary LH release and testosterone production.
88. Taurine is abundant in seminal plasma and supports sperm osmoregulation and motility.
89. Taurine seems potentially beneficial for testicular health, sex hormones, and fertility.
90. All the evidence for reproductive health benefits is in animals, not humans.
91. Many people use taurine successfully as part of a supplement stack when trying to conceive.
92. In rodent and cell studies, taurine consistently protects against heavy metals like cadmium and lead, pesticides, and liver/kidney toxicity.
93. This protection is achieved through its antioxidant and anti-inflammatory actions.
94. If exposed to environmental contaminants, taurine could be a beneficial supplement.
95. The most certain benefits of taurine include lowering blood pressure, lowering triglycerides, improving endurance, controlling blood sugar, and general heart health.
96. Well-established mechanistic roles of taurine include supporting the mitochondrial electron transport chain and ATP production, bile acid conjugation, osmoregulation, retinal health, and suppressing inflammation via taurine chloramine.
97. Benefits with promising animal or cell data but limited human data include male fertility/hormones, neuroprotection, anti-cell death, supporting BDNF, reducing AGEs, reducing stress/anxiety, reducing appetite, strengthening the gut barrier, resistance to gut infection, reducing overactive immune systems, protecting liver/kidneys, protection against environmental toxins, and improving longevity.
98. Dosages used in trials are typically 1 g to 3 g per day.
99. For most people, 1 to 1.5 g (1,000 to 1,500 mg) per day is likely sufficient.
100. There is not much evidence that doses beyond 3-6 g provide additional benefit over 1-3 g.
101. 6 g is the established safe limit for taurine.
102. Some trials have used up to 10 g per day with no adverse effects.
103. Taurine is a very safe supplement.
104. For exercise benefits, taking taurine 1-2 hours before a workout may be beneficial.
105. People on antihypertensive drugs should be cautious, as taurine can lower blood pressure further.
106. Data on safety for people with kidney impairments, pregnant, and breastfeeding women is lacking.
107. Taurine might interact with drugs metabolized by cytochrome P450 (e.g., antidepressants, antiepileptics, warfarin, statins) by inhibiting this activity.
108. It is generally fine to have taurine with caffeine.
109. Energy drinks often contain substantial doses of taurine (1-2,000 mg).
110. Food alone typically provides only 40-400 mg of taurine daily for omnivores.
111. Reaching 1.5 to 3 g of taurine from food alone is difficult, making supplementation more practical for most people.
112. Taurine is a fascinating, important, cheap, and safe molecule.
113. The speaker personally takes taurine most days.
114. Most people will likely benefit from taking taurine.

Taurine plays a role in the immune system, particularly within white blood cells where it is highly concentrated. It helps to detoxify hypochlorous acid, a substance produced by activated neutrophils to kill pathogens, by converting it to the more stable taurine chloramine. This process protects tissues from damage by the acidic compound. Additionally, taurine chloramine acts as a signaling molecule that can inhibit inflammatory pathways, thereby reducing inflammation. Taurine also activates the NRF2 antioxidant pathway, which further protects cells from oxidative damage and inflammation, contributing to a modulated immune response. In animal models, taurine has shown potential in supporting the normal immune response and may help reduce autoimmune issues or an overactive immune system.