I utilize zinc supplementation in patients with hair, skin, and nail problems as well as thyroid disease. There are new studies that zinc is preventing cancer and its spread or growth.
There are new studies to finally indicate its possible mechanisms of attacking cancer cells specifically and ignoring the normal ones. This is unique for any mineral.
A study using zinc was done at the University of Texas on esophageal cancer. I feel, as doctors, we have ignored the importance of zinc in our diet and if not getting enough of zinc in our diet we should supplement it at this time.
I advocate zinc rich foods such as spinach, shrimp, and pumpkin seeds. Watermelon has lots of lycopene and zinc, but it is also a high glycemic fruit.