Alpha-carotene is a potent plant-based antioxidant that has been associated with a reduced risk of death from any cause. The following list of foods has the highest concentrations. Canned pumpkin Carrots Butternut squash Tomato juice (low sodium) Dark leafy greens (any variety) Tomatoes (fresh, canned, sauce or paste) Cabbage Red bell peppers Tangerines Green beans […]