Your lymphatic system is a network of vessels and glands throughout your body and its entire job is to help remove waste. Give yours a boost by getting a daily serving of fish oils, Dr. Dean says. “The lymphatic system can get clogged as we age, and omega-3 fatty acids, like the kind found in fish, keep this system clear and functioning properly, which in turn helps keep your immune system strong,” she explains. Psst… Have you heard of the only cleanse nutritionists want you try?