Sudden (acute) colitis. If your dog suddenly develops colitis, it is probably induced by stress, such as boarding, moving, severe weather or some other change in lifestyle, or it could be from a dietary indiscretion, such as emptying the garbage can, too many treats or a sudden change in diet.
âVitamin D is needed for the production of brain chemicals such as dopamine and norepinephrine and acetylcholine. These brain chemicals are known to improve and increase attention span, and its concentration in the brain is directly correlated with the ability to focus for sustained periods of time.â.
The term vitamin D also refers to metabolites (products of metabolism) and other analogues of these substances. Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation. Vitamin D plays an important role in the maintenance of organ systems (body tissues).