Our heart beats faster during anxiety, stress, physical activities like running, jogging and so on. However, when your heart beat rate is regularly fast, you need to keep a check. Rapid Heartbeat, it is a condition that can be very harmful for your health and raise heart risks. Here are the foods that can help lower the heart rate naturally. Include these foods in your diet to lower high heart rate. Rich in calcium and vitamins, tofu is not only heart healthy but also good for dieters who are on weight loss plan. Low amount of magnesium in body is one of the major causes of high heart rate and other heart conditions. Brazil nuts These are heart healthy nuts that are rich in vitamins and minerals especially magnesium.