She explained more about the link between protein and dopamine.
“Protein is linked to this due to multiple neurotransmitters within the brain, which are made up of these amino acids,” she said.
“Dopamine is made up of amino acids too, it is found that if there is a lack in the amino acids that makes up dopamine (tyrosine and tryptophan), this is where the association with low mood and depression comes into play, emphasising the importance of this macronutrient.”
Symptoms of a dopamine deficiency, as listed by the Cleveland Clinic, include:
- Lacking motivation
- Feeling tired
- Inability to concentrate
- Feeling moody or anxious
- No longer feeling pleasure from previously enjoyable experiences
- Feeling depressed or hopeless
- Having a low sex drive
- Experiencing trouble sleeping or a disturbed sleep.