Yes, easily — this is one of the more abundant amino acids in ordinary protein foods.
Watch lentils and legumes prices →Can you get it from food?
Lysine is concentrated in lean meat, poultry, fish, eggs and dairy, and among plants in legumes — lentils, chickpeas, black beans and soy in particular — plus wheat germ. For a 70 kg adult needing roughly 2.1 g a day, a normal diet containing meat, dairy or legumes covers it without any planning. The reason deficiency is rare isn't luck; it's that lysine is present in most of the protein people already eat.
| Food | To match the dose | |
|---|---|---|
| Lean poultry, meat, fish | A normal serve contributes substantially | Among the densest sources |
| Eggs and dairy | Contributes across the day | Milk, yoghurt and cheese all supply lysine |
| Lentils, chickpeas, black beans, soy | A normal serve contributes substantially | The main plant sources |
| Wheat germ | Contributes | Useful for vegetarians and vegans |
Grains are relatively low in lysine, which is why legumes matter for plant-based diets — but published reviews find most vegetarians still meet requirements from usual intake.
What the research actually shows
Lysine is one of the nine essential amino acids: your body can't make it, so it has to come from food. That makes the relevant question a nutritional one rather than a question about effects. The WHO requirement is 30 mg per kilogram of body weight per day, with the published range spanning roughly 12–45 mg/kg. For a 70 kg adult that's about 2.1 g daily. Because lysine is abundant in ordinary protein foods, documented deficiency is rare in populations with adequate protein intake, including among vegetarians.
On certainty: Worth noting the arithmetic: the Longevity Mix supplies 1 g, which is under half a 70 kg adult's daily requirement — so as with magnesium, it's a top-up rather than the source. Lysine is also studied for specific clinical uses we can't discuss here, as those are restricted representations.
The studies referenced
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Lysine requirement through the human life cycle
Reviews lysine requirements across the human life cycle, underpinning the reference values in use today. -
Comprehensive review of L-lysine: chemistry, occurrence, and physiological roles
Reviews lysine chemistry, dietary occurrence and physiological roles.