This Vitamin D supplement is a good source when levels are insufficient. Vitamin D helps support muscle function, while assisting in healthy inflammatory response. Vitamin D assists with mitochondria function for natural energy boosts and cognition.
Most importantly, when a body is deficient of Vitamin D a battered digestive tract or intestinal lining cannot absorb nutrients. Adequate levels of Vitamin D fights to get the supplies through the front lines to do its part with healing this battle. (That's the easiest way we can put it)