A lot of people come down with the common cold or flu during fall. Between the colder weather and more time indoors with a lot of people, the body is more susceptible to sickness. To give your body a better chance at fighting off bacteria and viruses, give your immune system the nutrients it needs via healthy foods. Supplying the body with vitamin C-rich foods is a great place to start, and this smoothie is loaded with vitamin C.

Cranberries belong to the same family as blueberries, bilberries, and lingonberries, but cranberries are the healthiest family. They contain various plant compounds, some of which are effective against urinary tract infections. Regarding immune function, cranberries are an excellent source of vitamin C, which also aids with skin, muscle, and bone maintenance. In addition to vitamin C, cranberries contain quercetin, which may be a potent protector against cancer. More research is necessary to confirm if this compound can help prevent the growth of leukemia, colon, breast, and pancreatic cancers. Cranberries also contain anthocyanins, which include peonidin and cyanidin, and they may be able to slow tumor growth, but more research is needed.

Although cranberries give this smoothie its ruby red color, pineapple is no slouch in the nutrient department. Pineapple is another vitamin C superstar, but it also contains a powerful enzyme, bromelain, that helps the body digest proteins. Bromelain may also reduce inflammation in the digestive tract. That same enzyme may also exhibit anti-cancer properties, as it was able to kill cancer cells in some laboratory studies. However, pineapples cannot cure cancer and they do not eliminate a person’s cancer risk. Pineapple is a healthy food that you can add to your diet to encourage optimal overall health.