Parkinson's disease (PD) is a type of movement disorder. It happens when nerve cells in the brain don't produce enough of a brain chemical called dopamine. Sometimes it is genetic, but most cases do not seem to run in families. Exposure to chemicals in the environment might play a role.
Why Vegans are Often Deficient in Vitamin B12. The few plant foods that are sources of B12 are actually B12 analogs. An analog is a substance that blocks the uptake of true B12, so your body's need for the nutrient actually increases.
Being vegan doesnât have many benefits over a WFPB diet. The one benefit of being a vegan over WFPB is that food tends to be easier to find. Restaurants and grocery stores offer more vegan food options than ever before. However, the main downfall of a vegan diet is health. Itâs easy to be unhealthy on a vegan diet.