Activate charcoal tablets detoxify the blood. Two tabs after meals. Also I have heard that having indoor plants helps to keep air inside clean and clean air can help to keep the body healthy. So, beautify your home with plenty of indoor plants.
Black tea...green tea...white tea...every kind of tea seems to promote good health and longevity. Eat plenty of fresh fruits...they are the best and most nutritious food suited for human consumption.