It would be hard to find a topic that has attracted more global attention than immune health during the last year. People are increasingly doing as much for their overall wellbeing as they possibly can in the light of the ongoing pandemic, especially with supplements. This is clearly reflected in the significant sales uptick for vitamins and minerals. However, within that category, there is another popular nutrient that may come as a bit of a surprise to some: protein and, in particular, collagen.