Iron is LIKELY SAFE for most people when it is taken by mouth in appropriate amounts. However, it can cause side effects including stomach upset and pain, constipation or diarrhea, nausea, and vomiting. Taking iron supplements with food seems to reduce some of these side effects. However, food can also reduce how well the body absorbed iron.
Fresh Fish for Protein. Fish is a great source of lean protein, and some varieties such as trout are rich in vitamin D, which has been shown to help lower blood pressure. âPeople usually donât get enough vitamin D from food, so this is one way to boost your intake,â Dean says.
Starchy vegetables, such as potatoes and sweet potatoes, are high in potassium and low in sodium. A high-potassium, low-sodium diet may help lower your blood pressure, and healthy adults should have at least 4,700 milligrams potassium and no more than 2,300 milligrams sodium per day.igh-fiber fruits may help lower your blood pressure. Photo Credit Stockbyte/Stockbyte/Getty Images. High blood pressure increases your risk for heart disease and stroke, but you may be able to lower your blood pressure by improving your diet.