- A higher protein intake or supplementation results in increased levels.
- Low protein intake or inflammation can lead to lower levels.
- Nutrient cofactors of tyrosine pathways include BH4, non-heme iron, vitamins B6 and B3, copper, niacin, vitamin C, magnesium, and SAMe.
- Elevated tyrosine is associated with a higher risk of type 2 diabetes and gestational diabetes and a higher body mass index.
- Tyrosine-supplementation effects on cognition vary – unfavorable effects were noted on working-memory performance in older adults.
- Higher tyrosine was related to better cognitive skills in younger adults.
- Urine and blood tyrosine were noted to be lower in depression.
Tyrosine (Plasma)
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