I think you are referring to the defficiency disease called "Pellegra". It is caused by a chronic lack of niacin (vitamin B3) or its precursur tryptophan in the diet. It is characterized by dermatitis (skin rash), diarrhea, and mental disturbance, and is often linked to overdependence on corn as a staple. The wikipedia says is it is common in Africa, Indonesia, and China, but is rare in Western societies. In affluent societies the majority of patients with clinical pellegra are poor, homeless, alcohol-dependent, or psychiatric patients who refuse food. The best food sources of B3 are peanuts, brewer's yeast, fish, and meat. Some B3 is also found in whole grains.
Pellagra is a nutritional deficiency disease caused by a lack of niacin (vitamin B3) in the diet, along with insufficient intake of tryptophan, an amino acid that the body can convert into niacin. It is characterized by the "three D's": dermatitis, diarrhea, and dementia. If left untreated, it can lead to severe health complications and even death. Pellagra is often associated with populations that rely heavily on corn as a staple food, which is low in niacin.
It is safe to prevent some things, but, others you must not prevent.
Prevent
You can't prevent it.
What is there to prevent?Nothing will happen!
I prevent a cool show.
If you have a question like this though, what shold be the answer? If it asks you this in your spelling..
No, "prevent" is not a compound word. It is a single, standalone word.
I don't think so? But I heard sperm can prevent wrinkles, or help prevent them.
no it can't prevent pregnancy
prevent the occurrence of prevent something from happening
I bet it is to prevent the Flu.