How much does losing weight lower blood pressure?
Last updated September 3, 2026.
About 1 systolic point per kilogram: a meta-analysis of 25 trials found weight loss lowered blood pressure by roughly 1.05 mmHg systolic and 0.92 diastolic per kilogram, with 5 kg of loss averaging a 4.4-point systolic drop. Losses above 5 kg did better, around 6.6 systolic and 5.1 diastolic points. Put in medication terms: that 5-point range is comparable to one standard blood pressure pill, and at the population level it moves stroke and heart attack rates. The fine print matters. The effect is biggest in heavier people with higher starting pressure, it fades if the weight returns, and it adds to salt reduction, exercise, and medication rather than substituting for them. A useful bonus: weight loss improves obstructive sleep apnea, one of the most common hidden drivers of resistant hypertension. The sane target is 5 to 10% of body weight, held off long-term; a modest loss maintained beats a dramatic loss that rebounds, because pressure follows the weight back up. If your pressure is high and your weight is high, this is the single lifestyle change with the most predictable payoff per unit of effort.
What to do
- Do the math: roughly 1 systolic point per kilogram lost.
- Target 5 to 10% of body weight: that range delivers around 4 to 7 systolic points.
- Maintenance is the treatment: pressure returns when the weight does.
- Stack it: weight loss amplifies salt reduction, exercise, and medication.
- Watch sleep apnea: losing weight improves it, and apnea drives stubborn hypertension.
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