There’s a lot we don’t know about the human gut microbiome. We know this collection of bacteria, viruses and other critters residing in our digestive tract have crucial roles in many areas of our health. For many of these, we’ve barely scratched the surface of research.
Vitamin D is an essential micronutrient for humans. Called the “sunshine vitamin,” it’s a building block of strong bones and involved in a number of processes. Recent research has also identified it as important to the immune system, particularly in the fight against COVID-19 coronavirus.