The Lymphatic System: Your Body’s Natural Detox Network The lymphatic system is your body’s natural detox and immune support network. It removes waste, excess fluids, and toxins while also transporting white blood cells to fight infection. Unlike blood, lymph fluid doesn’t have a pump (like the heart). It relies on movement, breathing, and external stimulation. When the lymphatic system becomes sluggish, it can cause bloating, swelling, tiredness, or a weakened immune system