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.
Fatty fish like mackerel and salmon are high in omega-3 fatty acids, which can lower blood pressure, reduce inflammation, and lower triglycerides. In addition to these fish sources, trout contains vitamin D. Foods rarely contain vitamin D, and this hormone-like vitamin has properties that can lower blood pressure.