Tomatoes get their red hue from lycopene, a carotenoid that may help to keep your skin smooth. In a study published in 2008 in the European Journal of Pharmaceutics and Biopharmaceutics, researchers found that of the 20 individuals studied, those who had higher skin concentrations of lycopene had smoother skin. Consuming more lycopene may also protect your skin from sunburn. In one study, participants who were exposed to UV light had almost 50 percent less skin reddening after they ate 2 1/2 tablespoons of tomato paste (or drank about 1 2/3 cups of carrot juice daily), in addition to their regular diet, for 10 to 12 weeks. Supplements, however, weren’t as effective: in the same study, those who received a lycopene supplement or synthetic lycopene weren’t significantly protected against sunburn. You can also get lycopene from pink grapefruit, carrots, watermelon, guava and red peppers.