Garlic
Numerous studies have demonstrated that regular consumption of garlic lowers blood pressure, and decreases platelet aggregation, serum triglycerides and LDL-cholesterol (the potentially dangerous form) levels while increasing serum HDL-cholesterol (the protective form) and fibrinolysis (the process through which the body breaks up blood clots), and stimulating the production of nitric oxide in the lining of blood vessel walls, which helps them to relax. As a result of these beneficial actions, garlic helps prevent atherosclerosis and diabetic heart disease and reduces the risk of heart attack or stroke.
Other studies have shown that as few as two or more servings of garlic a week may help protect against colon cancer. (Galeone C, Pelucchi C, Levi F, Negri E, Franceschi S, Talamini R, Giacosa A, La Vecchia C. Onion and garlic use and human cancer. Am J Clin Nutr. 2006 Nov;84(5):1027-32. , PMID: 17093154)
Tomatoes
Tomatoes are an excellent source of vitamin C, vitamin A, and vitamin K. They are also a very good source of molybdenum, potassium, manganese, dietary fiber, chromium, and vitamin B1. In addition, tomatoes are a good source of vitamin B6, folate, copper, niacin, vitamin B2, magnesium, iron, pantothenic acid, phosphorous, vitamin E and protein. Lycopene, the carotenoid found in tomatoes (and everything made from them) has been extensively studied for its antioxidant and cancer-preventing properties. The antioxidant function of lycopene – its ability to help protect cells and other structures in the body from oxygen damage-has been linked in human research to the protection of DNA (our genetic material) inside of white blood cells. Prevention of heart disease has been shown to be another antioxidant role played by lycopene. Studies have also shown that eating tomatoes also promotes prostate and pancreatic health.