The immune system is your body’s armour against disease. Here are a few ways to keep it working at peak efficiency. Eat plenty of plants Why? Any healthy diet starts with more fruit and vegetables. Plant foods provide our bodies with an abundance of vitamins, minerals, antioxidants, active compounds and fiber. Vitamins and minerals help us metabolize our food and build the cells we need to bolster our immune function. Antioxidants help protect our body...