Feeling tired, moody, or forgetful lately? These could be warning signs of a Vitamin B12 deficiency, especially in women.

AADC deficiency affects the same dopamine pathways as Parkinson’s disease — though not through neuron degeneration, but because the body can’t produce dopamine in the first place.

Lastly, Sharp said B vitamins, like B12, B6 or folate, are also important for healthy behaviour in children. Some foods high in B vitamins include liver, poultry, eggs, leafy greens, nutritional yeast ...

Parkinson’s disease affects over 10 million people globally, with incidence increasing after age 60. Dopamine-producing neuron loss leads to both motor and non-motor symptoms, including tremors ...

These dopamine deficiency symptoms can usually be controlled for many years, but eventually patients develop motor complications during chronic levodopa therapy, and nondopaminergic problems ...