Spinach Have it raw or cooked, spinach is a great mood elevator and an efficient energy booster. Rich in iron, spinach wards off fatigue and aids concentration.We know Popeye loved spinach but do you know why? Not only does it make your muscles strong, it also helps dry skin, smooth lines and guard against sun damage. It contains an antioxidant called trifecta which helps battle all sorts of skin problems as well as containing vitamins and minerals that fight off cancer cells, lower blood pressure and slow the age-related decline in brain function.