Beet juice may boost stamina to help you exercise longer, improve blood flow, and help lower blood pressure, some research shows. Why? Beets are rich in natural chemicals called nitrates. Through a chain reaction, your body changes nitrates into nitric oxide, which helps with blood flow and blood pressure. The benefits of activated charcoal include general detoxification, digestive health, gas, bloating, heart health, and anti-aging. Take activated charcoal powder or capsules when you eat out at restaurants, drink bad quality coffee, when you travel, when you feel moody or tired, and when you drink alcohol.