Rumor has it they’re good for other things, but we’re talking looks here, and there’s plenty of good news in that department as well. Oysters contain zinc, a mineral that strengthens the hair follicles, giving your strands a thicker appearance. It also helps protect cell membranes and keeps your skin firm. People with zinc deficiencies often have red, scaly skin. More good news about zinc: it contains selenium, a mineral that protect against sun damage and has even been shown to prevent skin cancer in some animal studies.