The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
nuts and meats in particular red meats, tend to be rich in things like tyrosine, right? That tells you right there, that because tyrosine is the precursor of dopamine, and dopamine is the precursor of norepinephrine, and epinephrine that those foods tend to lend themselves toward the production of dopamine and epinephrin and the sorts of things that are associated with wakefulness.
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First of all, nuts and meats in particular red meats, tend to be rich in things like tyrosine, right? That tells you right there, that because tyrosine is the precursor of dopamine, and dopamine is the precursor of norepinephrine, and epinephrine that those foods tend to lend themselves toward the production of dopamine and epinephrin and the sorts of things that are associated with wakefulness.
Nuts and meats, in particular red meats, tend to be rich in things like tyrosine. That tells you right there that because tyrosine is the precursor of dopamine and dopamine is the precursor of norepinephrine and epinephrine, that those foods tend to lend themselves toward the production of dopamine and epinephrine and the sorts of things that are associated with wakefulness.
We've talked a lot about neuromodulators, like dopamine, acetylcholine, and norepinephrine. You may notice in those discussions that the precursors to say serotonin is tryptophan. Tryptophan actually comes from the diet. It comes from the foods that we eat. Tyrosine is the precursor to dopamine. It comes from the foods that we eat.