BOOSTING the immune system is a must these days. Anyone can easily catch colds and flu.

To rev up your immune system, get three colors in every meal. These are fruits and vegetables in reds, oranges, yellows, and greens. They are especially rich in carotenoids, which help immune cells surround and kill off a virus.

They also contain antioxidants and vitamins A and C, which strengthen cells and help them defend against invading bacteria. Aim for five to nine servings of produce a day, which is easier to do than you may think: Have at least one serving at each meal and two as snacks and presto, you’ve already reached five.

Don’t forget to eat good bacteria. Studies on specific probiotic products have shown that their ‘good bacteria’ can help prevent or reduce the duration of some gastrointestinal, urogenital, and respiratory illnesses.

Probiotic foods or supplements can be found in foods that are easy to incorporate into your daily diet. Look for probiotic yogurts, tempeh, fortified cheeses, and kefir drinks. Be sure to choose probiotic foods or supplements that contain proven strains, such as Lactobacillus rhamnosus GR-1 or GG, L. casei Immunitas, and Bifidobacterium animalis DN 114 001. Do not rely  on the words probiotic or acidophilus on the label.