Several proven options can lower blood pressure, ranging from dietary changes and supplements to prescription medications. What works best depends on where your numbers currently fall. Normal blood pressure is below 120/80 mmHg. Readings of 120-129 systolic with a diastolic under 80 count as elevated, 130-139/80-89 is stage 1 hypertension, and anything at or above 140/90 is stage 2.
Dietary Changes That Lower Blood Pressure
The single most effective dietary strategy is the DASH diet (Dietary Approaches to Stop Hypertension), which emphasizes fruits, vegetables, whole grains, lean protein, and low-fat dairy while cutting back on saturated fat and sodium. In people with isolated systolic hypertension, the DASH diet lowered systolic pressure by about 11 mmHg and diastolic by about 4.5 mmHg compared to a typical American diet. That’s a reduction on par with some medications.
The core principles are straightforward: eat more potassium-rich foods (bananas, sweet potatoes, spinach, beans), reduce sodium to under 2,300 mg per day (ideally closer to 1,500 mg), and replace processed foods with whole ones. The World Health Organization recommends at least 3,510 mg of potassium daily for adults. Most people fall well short of that, and closing the gap through food is one of the simplest changes you can make. Potassium helps your body flush excess sodium through urine, which directly reduces fluid volume in your blood vessels.
Supplements With Clinical Evidence
Magnesium
A large meta-analysis published in the American Heart Association’s journal Hypertension found that magnesium supplements lowered systolic pressure by about 2.8 mmHg and diastolic by about 2 mmHg on average. The typical dose across trials was around 365 mg of elemental magnesium daily, taken for about 12 weeks. The effect was much stronger in certain groups: people already taking blood pressure medication who added magnesium saw systolic drops of nearly 8 mmHg, and those who were magnesium-deficient saw drops of about 6 mmHg systolic and nearly 5 mmHg diastolic.
Omega-3 Fatty Acids
Fish oil supplements containing EPA and DHA can lower blood pressure, but you need enough of them. A dose-response meta-analysis in the Journal of the American Heart Association found the optimal range is 2 to 3 grams per day of combined omega-3s, which lowered systolic pressure by about 2.6 mmHg and diastolic by 1.6 to 1.8 mmHg. Most over-the-counter fish oil capsules contain around 300 mg of combined EPA and DHA per capsule, so hitting 2 grams means taking several daily or choosing a concentrated formula.
Aged Garlic Extract
Garlic supplements, particularly aged garlic extract, have shown consistent blood pressure benefits. A meta-analysis in Frontiers in Nutrition found systolic reductions of about 4.2 mmHg and diastolic reductions of about 3.1 mmHg. The most effective results came from an 8-week course. Standard aged garlic extract capsules are widely available; look for products standardized to their active compound content.
Beetroot Juice
Beetroot juice works through a different mechanism. The nitrates in beets get converted into nitric oxide, which relaxes blood vessel walls. A single dose containing about 7 mmol of nitrate lowered central (aortic) systolic pressure by roughly 5 mmHg, peaking just 30 minutes after drinking it. The catch is that this effect is short-lived and doesn’t persist over 24 hours, so beetroot juice is better thought of as a daily habit rather than a one-time fix.
Prescription Medications
When lifestyle changes and supplements aren’t enough, or when blood pressure is already in stage 2, prescription medications become necessary. There are four main types, each working through a different mechanism.
Diuretics are often the first medication prescribed. They help your kidneys push extra fluid and salt into your urine while also widening blood vessels. The result is less fluid pressing against artery walls. Thiazide-type diuretics are the most common starting point.
ACE inhibitors block your body from producing a chemical called angiotensin II, which normally tightens blood vessels. Without it, vessels stay more relaxed and open. ARBs work on the same system but at a different step: they let your body make angiotensin II but prevent it from binding to blood vessel walls. Both classes are effective, and ARBs are typically prescribed for people who develop a dry cough on ACE inhibitors (a common side effect).
Calcium channel blockers prevent calcium from entering the muscle cells in your blood vessel walls. Without that calcium signal, the muscle relaxes and the vessel widens. These are particularly effective for older adults and can be combined with other medication types when a single drug isn’t enough.
Many people end up on two medications from different classes rather than a high dose of one. This approach targets blood pressure through multiple pathways and typically causes fewer side effects than pushing a single drug to its maximum.
When You Take Medication Doesn’t Matter Much
You may have heard that taking blood pressure pills at night is better than in the morning. A large trial called TIME followed about 21,000 patients for five years and found no meaningful difference. Roughly 3.4% of evening dosers experienced a major cardiovascular event (heart attack, stroke, or vascular death) compared to 3.7% of morning dosers, a gap that was not statistically significant. Fall and fracture rates were also identical between the two groups. Take your medication at whatever time helps you remember it consistently.
Over-the-Counter Pain Relievers Can Push Numbers Up
If you’re working to lower your blood pressure, be aware that common painkillers like ibuprofen and naproxen (NSAIDs) can raise it. These drugs inhibit enzymes in the kidneys that help regulate fluid balance and blood vessel tone, leading to sodium retention and higher pressure. In one study, naproxen significantly increased both clinic and ambulatory blood pressure in patients whose hypertension had been controlled with ACE inhibitors or ARBs.
This doesn’t mean you can never take an NSAID, but if you use them regularly for joint pain or headaches, your blood pressure readings may be higher than they would otherwise be. Acetaminophen (Tylenol) has a smaller effect on blood pressure, though it’s not entirely neutral either. If you’re on blood pressure medication and need frequent pain relief, it’s worth having a conversation about which option interferes least with your treatment.
Putting It All Together
For mildly elevated blood pressure (120-129 systolic), dietary changes alone, particularly adopting a DASH-style eating pattern, increasing potassium, and reducing sodium, can often bring numbers back to normal. Adding a magnesium supplement or omega-3s may provide an additional few points of reduction. For stage 1 hypertension, these same strategies are worth trying for three to six months before adding medication, though your overall cardiovascular risk factors matter. Stage 2 hypertension almost always calls for medication alongside lifestyle changes, because the risk of stroke and heart damage rises sharply at those levels.
The reductions from individual interventions may seem modest (2 to 5 mmHg each), but they stack. Combining the DASH diet, adequate potassium, magnesium supplementation, omega-3s, and regular exercise can collectively lower systolic pressure by 15 mmHg or more. That’s the difference between needing medication and not needing it for many people.