9 Super Foods to Boost the Immune System October 27, 2016 by Marta Ribeiro In Social Clips. 5. Sweet Potatoes Full of beta-carotene which is great for your skin, sweet potatoes make a healthier alternative to regular potatoes and are much lower on the GI scale. Do you know that there are some lesser-known symptoms of IBD? Find them here. Print This Page Pages: 1 2 3 4 5 6 7 8 9