How to Improve Your Sperm Quality (The Easy Way)
Tim Ferriss
Walnuts and fertility 1:31
Walnuts drew attention because 75 grams a day in a 2012 trial of 117 healthy men improved sperm vitality, motility, and morphology.
Nuts in broader doses 2:30
A 2024 meta analysis said at least 60 grams of nuts a day improved those same measures, though not sperm concentration. Calories still matter.
Micronutrients and Brazil nuts 4:02
Selenium deficiency can affect sex hormones. Brazil nuts get selenium from soil, so you check origin and think about what your food ate.
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