Lowered levels of zinc can lead to poor blood glucose management, sugar cravings, loss of appetite, lousy digestion, poor resistance to infection, skin infections, lowered fertility, tissue repair, scarring and a wide range of other problems. Zinc rich foods include oysters, beef and lamb, pumpkin seeds, and sunflower seeds. You might also consider taking a good quality supplement if you know you are zinc deficient.
Dr Libby is a nutritional biochemist, best-selling author and speaker. The advice contained in this column is not intended to be a substitute for direct, personalised advice from a health professional. Visit drlibby.com.