Definition: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: Deficiency of this substance can sometimes result from Hartnup's Disease and Carcinoid syndrome, the latter of which occurs because tumors cause tryptophan to be used to create serotonin rather than this vitamin. Children at risk of Type-I diabetes are injected with its derivative to protect beta cells from decay, while its non-derived form has been used to reduce LDL levels. A more typical deficiency of this vitamin comes from diets reliant primarily on maize, an affliction known as pellagra, and its derivative is primarily used in the body to form coenzymes NADP and NAD. For 10 points, name this substance also known as Vitamin B3.
Output:
Science