 [ Symptoms ] how can i prevent high blood pressure [ Disease ] you can prevent high blood pressure by maintaining a healthy weight getting regular exercise reducing salt intake drinking alcohol in moderation if at all reducing stress other things like dietary supplements may also help prevent high blood pressure here is a roundup of what is being said about them potassium eating foods rich in potassium will help protect some people from developing high blood pressure calcium populations with low calcium intakes have high rates of high blood pressure however it has not been proven that taking calcium tablets will prevent high blood pressure but it is important to be sure to get at least the recommended amount of calcium from the foods you eat dairy foods like low fat selections of milk yogurt and cheese are good sources of calcium magnesium a diet low in magnesium may make your blood pressure rise but doctors do not recommend taking extra magnesium to help prevent high blood pressure    the amount you get in a healthy diet is enough magnesium is found in whole grains green leafy vegetables nuts seeds and dry peas and beans fish oils a type of fat called omega 3 fatty acids is found in fatty fish like mackerel and salmon large amounts of fish oils may help reduce high blood pressure but their role in prevention is unclear taking fish oil pills is not recommended because high doses can cause unpleasant side effects the pills are also high in fat and calories of course most fish if not fried or made with added fat is low in saturated fat and calories and can be eaten often garlic there has been some evidence to suggest garlic is effect in lowering blood pressure in addition to improving cholesterol and reducing some cancers always talk to your doctor before taking a dietary supplement or alternative herbal treatment some may interact with other medications you may be taking or have harmful side effects