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“And that's L-carnitine and coenzyme Q10, both of which have been shown to, well, in the case of males to improve sperm motility, not so much count, but motility and quote unquote quality, because that's a multi-metric label quality, as well as egg quality.”
Andrew Huberman · Your Top Health Questions Answered · Jul 27, 2026 · 1:06:12 ·
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▶ Your Top Health Questions Answered 1:06:12 “And that's L-carnitine and coenzyme Q10, both of which have been shown to, well, in the case of males to improve sperm motility, not so much count, but motility and quote unquote quality, because that's a multi-metric label quality, as well as egg quality.” ▷ Essentials: Tools for Hormone Optimization in Males | Dr. Kyle Gillett 15:21 “Usually I recommend for oral L-carnitine between 1,000 milligrams and up to 4,000 or 5,000 milligrams. So one to four, maybe even five grams.” ▷ How Women Can Improve Their Fertility & Hormone Health | Dr. Natalie Crawford 1:41:48 “And then for sperm health, L-carnitine we like a lot.” ▷ Female Hormone Health, PCOS, Endometriosis, Fertility & Breast Cancer | Dr. Thaïs Aliabadi 1:24:55 “I've seen a few papers that suggest that coenzyme Q10 and L-carnitine might be beneficial for egg quality. Yes.” ▷ Female Hormone Health, Fertility & Vitality | Dr. Natalie Crawford 2:43:12 “We use a gram of L-carnitine with a gram of vitamin C for our male patients who have any abnormal sperm parameter.” ▷ How to Optimize Fertility in Males & Females 3:50:53 “If you're obtaining it in capsule form, one to three grams per day of capsule form L-carnitine is what's been suggested to improve egg quality and sperm quality... when taken for a period of 30 to 60 days, does seem to significantly improve all the parameters” ▷ Developing a Rational Approach to Supplementation for Health & Performance | Huberman Lab Podcast 1:11:11 “things for instance, like L-carnitine... it can indeed improve sperm motility and quality and egg quality. So it's a pro-fertile compound” ▷ Tools for Hormone Optimization in Males | Dr. Kyle Gillett 1:08:58 “Usually I recommend for oral L-carnitine between 1,000 milligrams and up to 4,000 or 5,000 milligrams... when you inject it... between 500 milligrams up to... 2,000 milligrams... it increases the density of the androgen receptor” ▷ The Science of Eating for Health, Fat Loss & Lean Muscle | Dr. Layne Norton 3:28:32 “L-carnitine and its other forms... there's good evidence that they can improve sperm and egg health for people who are looking to conceive.” ▷ How to Optimize Your Hormones for Health & Vitality | Dr. Kyle Gillett 1:40:48 “You can alter the sensitivity of your androgen receptor with things like L-carnitine and Tadalafil... A lot of people will take L-carnitine, L-tartrate, or acyl L-carnitine. And that's about 10% bioavailable. So if you want one gram or a thousand milligrams of L-carnitine, you can take 10 grams of oral L-carnitine.” ▷ How Our Hormones Control Our Hunger, Eating & Satiety 1:22:12 “Things like L-carnitine... can have effects of reducing blood glucose slightly.”