"To supplement the diet" means to add something extra or provide additional nutrients to one's meals in order to improve overall nutrition and fill any gaps in the regular diet. Full definition
After all, the benefits of supplementing your diet with omega - 3 fatty acids are hard to ignore. (liveinthenow.com)
Their complete formula makes them ideally suited to supplement the diet of pregnant and nursing dogs who have greater nutritional requirements, as well as particularly active or working dogs. (mypetneedsthat.com)
Fortunately, these conditions can often be prevented from occurring simply by supplementing your diet with food products that are rich in beneficial intestinal microorganisms. (ericbakker.com)