The most effective approaches for high blood pressure combine lifestyle changes with medication when needed. For many people, losing weight, changing how you eat, exercising regularly, and taking the right supplements can lower systolic blood pressure by 5 to 11 points or more. When those steps aren’t enough, four main classes of prescription medication serve as first-line treatment. Here’s what works, how much it helps, and what to watch out for.
How Blood Pressure Categories Are Defined
Stage 1 hypertension starts at 130/80 and runs up to 139/89. Stage 2 hypertension is 140/90 or higher. Your category determines how aggressively you and your doctor approach treatment. Stage 1 often starts with lifestyle changes alone, while stage 2 typically calls for medication right away alongside those same changes.
The DASH Diet and Sodium Reduction
The single most studied dietary approach for blood pressure is the DASH (Dietary Approaches to Stop Hypertension) eating plan. It emphasizes fruits, vegetables, whole grains, lean protein, and low-fat dairy while limiting saturated fat, red meat, and added sugars. A large meta-analysis found the DASH diet reduces systolic blood pressure by about 6.7 points and diastolic by 3.5 points on average.
Combining the DASH diet with sodium reduction produces even larger drops. In the DASH-Sodium trial, people with hypertension who followed the diet and kept sodium low experienced an average systolic reduction of 11.5 points. The National Heart, Lung, and Blood Institute recommends staying under 2,300 mg of sodium per day, noting that dropping to 1,500 mg lowers blood pressure even further. For context, a single teaspoon of table salt contains about 2,300 mg.
Exercise That Lowers Blood Pressure Most
A large network meta-analysis published in the British Journal of Sports Medicine compared every major type of exercise for blood pressure reduction. The surprising winner was isometric exercise, specifically wall squats, which lowered systolic pressure by about 10.5 points and diastolic by 5.3 points. That outperformed aerobic exercise (4.5/2.5 points), weight training (4.6/3.0 points), and high-intensity interval training (4.1/2.5 points).
A wall squat is exactly what it sounds like: you press your back against a wall and lower yourself into a seated position, holding it. Running was the most effective aerobic subtype for diastolic blood pressure. Combining resistance and aerobic training also performed well, lowering systolic pressure by about 6 points. The takeaway is that variety matters, but if you’re looking for the single most efficient exercise for blood pressure, isometric holds deserve a spot in your routine.
Weight Loss
Losing weight has a remarkably consistent effect on blood pressure. A meta-analysis of 25 randomized controlled trials found that systolic blood pressure drops by roughly 1 point for every kilogram (2.2 pounds) lost. That means losing 10 kg (about 22 pounds) could reduce your systolic reading by around 10 points. This benefit applies regardless of how you lose the weight.
Supplements Worth Considering
Magnesium and potassium are the two most studied mineral supplements for blood pressure. A 2024 meta-analysis found that magnesium at doses of 360 mg per day or less, taken for longer than three months, lowered systolic blood pressure by about 4.3 points. Potassium at moderate doses taken for more than a month reduced it by about 2.8 points. Interestingly, both minerals showed better results at lower doses over longer periods rather than high doses over short ones.
Omega-3 fatty acids from fish oil also help. A dose-response meta-analysis found that 2 to 3 grams per day of combined EPA and DHA (the active fats in fish oil) lowered systolic blood pressure by about 2.6 points and diastolic by 1.6 to 1.8 points. Going above 3 grams didn’t produce additional benefit.
Aged garlic extract has shown modest effects, reducing systolic blood pressure by roughly 1.8 points in people already taking medication. That’s a small addition, but it may be meaningful over years of cardiovascular risk. These supplements work best as complements to diet and exercise, not replacements.
Prescription Medications
When lifestyle changes aren’t enough to reach your target, four classes of medication are used as first-line treatment. Your doctor chooses among them based on your age, ethnicity, kidney function, and other health conditions.
- Thiazide diuretics help your kidneys remove extra sodium and water, which reduces blood volume. They also mildly relax blood vessels. These are often the first medication tried for uncomplicated high blood pressure.
- ACE inhibitors block the production of a hormone that tightens blood vessels, allowing them to relax and widen. They also raise levels of a natural compound that promotes vessel relaxation.
- ARBs work similarly to ACE inhibitors but through a different mechanism. They block the same vessel-tightening hormone at its receptor rather than preventing its production. They’re commonly prescribed when ACE inhibitors cause side effects like a persistent dry cough.
- Calcium channel blockers prevent calcium from entering blood vessel and heart muscle cells, which relaxes the vessels and reduces how hard the heart pumps. These are particularly effective for older adults and are often used when diuretics alone aren’t sufficient.
Many people end up on two medications from different classes, since combining them often works better than increasing the dose of one. For example, pairing a thiazide diuretic with an ACE inhibitor can enhance the effect of both.
Over-the-Counter Drugs That Raise Blood Pressure
Some common medications you can buy without a prescription actively work against your blood pressure goals. NSAIDs like ibuprofen (Advil, Motrin) and naproxen (Aleve) cause your body to retain water, which raises blood pressure. If you take them regularly for pain or inflammation, they can partially cancel out your blood pressure medication.
Decongestants are another major offender. Pseudoephedrine and phenylephrine, found in many cold and sinus products, narrow blood vessels throughout your body to reduce nasal swelling. That same narrowing pushes blood pressure up. If you have high blood pressure, look for cold medicines labeled “decongestant-free” or ask your pharmacist for alternatives. Caffeine and certain herbal supplements can also raise blood pressure, so it’s worth reviewing everything you take regularly.
Putting It All Together
The reductions from individual lifestyle changes are additive. Following the DASH diet with low sodium could lower your systolic blood pressure by 11 points. Adding regular exercise, especially isometric holds, could contribute another 8 to 10 points. Losing excess weight adds roughly 1 point per kilogram lost. Magnesium and fish oil might contribute a few more points each. Stacked together, these changes can rival or exceed what a single medication achieves, which is why doctors recommend them even for people who need prescriptions.