What foods are rich in tyrosine?

Foods that are rich in tyrosine, which is an amino acid precursor to dopamine, include:

• Nuts and seeds
• Red meats (particularly mentioned are nuts and meats for increasing wakefulness)
• Certain cheeses (such as Parmesan cheese)
• Certain fruits and vegetables

It's important to note that while these foods contain the precursors to neurotransmitters like dopamine, the volume of food consumed also has an impact. Eating large quantities, regardless of the food's tyrosine content, can lead to sleepiness due to increased blood flow to the gut, thus diminishing focus and concentration 1 2 3.