Several everyday drinks can help lower blood pressure when consumed regularly over weeks. Hibiscus tea, beetroot juice, and pomegranate juice have the strongest research behind them, with studies showing systolic blood pressure drops of 7 to 21 points depending on the drink and how long you stick with it. Green tea, unsalted tomato juice, and low-fat milk also contribute smaller but meaningful effects.
None of these replace medication if you already need it, but for people with mildly elevated blood pressure or those looking for complementary habits, the right drinks can make a real difference.
Hibiscus Tea
Hibiscus tea is one of the most studied beverages for blood pressure. In a USDA-funded trial, participants who drank three cups daily for six weeks saw their systolic blood pressure drop by 7.2 points on average, compared to just 1.3 points in the placebo group. People who started with the highest readings benefited even more: their systolic pressure fell by 13.2 points and diastolic by 6.4 points.
The tea works partly by relaxing blood vessel walls. You can brew it from dried hibiscus flowers (sometimes sold as “sour tea” or “agua de jamaica”) or buy it in teabag form. Drink it unsweetened or lightly sweetened to avoid adding sugar, which works against your goals. One thing to be aware of: hibiscus can interact with certain blood pressure medications. It may increase the effects of losartan, for example, which could cause your pressure to drop too low. If you’re on any antihypertensive drugs, check with your pharmacist before making hibiscus tea a daily habit.
Beetroot Juice
Beetroot juice lowers blood pressure through a completely different pathway than most other drinks. It’s rich in dietary nitrates, which your body converts into nitric oxide, a molecule that signals blood vessels to relax and widen. This process starts in the small intestine, cycles through saliva, and ultimately increases nitric oxide availability throughout your bloodstream.
In a clinical trial published by the American Heart Association, people with hypertension who drank about 250 mL (roughly one cup) of beetroot juice daily for four weeks saw their systolic blood pressure drop by 7.7 points and diastolic by 5.2 points on 24-hour monitoring. Peak reductions hit 8.1 points systolic by week six. The placebo group, which drank nitrate-free beetroot juice, showed no change.
One cup a day is the dose most studies use. The juice has an earthy taste that some people find strong, so mixing it with apple or carrot juice can help. Store-bought versions work as well as homemade, as long as they contain actual beetroot and aren’t loaded with added sugar.
Pomegranate Juice
Pomegranate juice contains natural compounds that block angiotensin-converting enzyme, the same enzyme targeted by a widely prescribed class of blood pressure medications. Research published by the American Chemical Society identified several specific compounds in pomegranate that inhibit this enzyme by binding to its active site, essentially preventing it from narrowing blood vessels.
The blood pressure effects are notable for their size and durability. In one long-term study, systolic blood pressure dropped by 21% after one year of daily pomegranate juice consumption, and that reduction held steady through three years of follow-up. Pomegranate juice is calorie-dense, though, with about 130 calories per cup. Drinking 4 to 8 ounces daily is a reasonable amount that balances the cardiovascular benefits against the sugar content.
Unsalted Tomato Juice
A Japanese study involving nearly 500 participants found that regular unsalted tomato juice intake lowered systolic blood pressure from an average of 141 to 137 and diastolic from 83 to 81 in people with untreated prehypertension or hypertension. Those numbers are modest but meaningful, especially because the study also found a significant drop in LDL cholesterol.
The key word here is “unsalted.” Regular tomato juice is often packed with sodium, which raises blood pressure. Check labels carefully: you want a product with no added salt, or juice your own tomatoes at home. The beneficial effects come largely from lycopene and potassium, both abundant in tomatoes.
Green Tea
Green tea produces smaller blood pressure reductions than hibiscus or beetroot juice, but it’s one of the easiest habits to maintain long-term. A meta-analysis of randomized controlled trials found that green tea lowered systolic blood pressure by about 2 points and diastolic by about 1.7 points on average. People who started with systolic readings at or above 130 saw larger drops.
Green tea extract in supplement form appeared to produce greater reductions than brewed tea in the studies analyzed, though brewed tea still showed a benefit. The antioxidant compounds in green tea improve the flexibility of blood vessel walls over time. Two to three cups a day is a common intake in the populations studied, and the caffeine content is low enough that it rarely causes the blood pressure spikes associated with coffee.
Low-Fat Milk
Low-fat milk is a core component of the DASH diet, the eating pattern most consistently recommended for blood pressure management. Its benefit comes primarily from calcium, which plays a direct role in regulating blood vessel contraction and relaxation. The combination of calcium, potassium, and protein in milk makes it more effective for blood pressure than calcium supplements alone.
Full-fat dairy doesn’t carry the same benefit, likely because the saturated fat offsets the mineral advantages. Aim for one to two servings of low-fat or fat-free milk daily as part of a broader dietary pattern that emphasizes fruits, vegetables, and whole grains.
Coconut Water
Coconut water is often promoted for blood pressure because of its potassium content, roughly 600 mg per eight-ounce serving (some brands hit nearly 700 mg). Potassium helps counterbalance sodium’s effect on blood pressure by encouraging the kidneys to excrete more sodium in urine. Most adults don’t get enough potassium, so coconut water can help fill that gap.
There’s an important limit, though. Coconut water consumed in large quantities can push potassium levels dangerously high, particularly in people with kidney problems. Case reports have documented life-threatening heart rhythm disturbances from excessive intake. One to two servings per day is a safe range for most people with normal kidney function.
How Long Before You See Results
Most studies show measurable blood pressure changes within two to six weeks of daily consumption. Hibiscus tea showed clear results at six weeks. Beetroot juice produced significant drops by four weeks, with peak effects at six weeks. Pomegranate juice continued improving blood pressure over months, with the largest reductions appearing after a full year.
Consistency matters more than quantity. Drinking beetroot juice once a week won’t do much. Daily intake at the amounts used in research, typically one to three cups depending on the drink, is what produces the reductions described above. These effects also disappear fairly quickly when you stop. In the beetroot juice trial, blood pressure returned toward baseline within two weeks of stopping.
What to Avoid in Your Drinks
The benefit of any blood pressure-friendly drink disappears if it comes loaded with added sugar or sodium. Sweetened hibiscus teas, salted tomato juice, and sugary pomegranate juice cocktails (as opposed to 100% juice) can all work against you. Excess sugar contributes to weight gain and insulin resistance, both of which raise blood pressure independently.
Alcohol is worth mentioning because some people believe moderate red wine helps blood pressure. It doesn’t. Alcohol raises blood pressure in a dose-dependent way, and reducing intake consistently lowers it. If you’re serious about using drinks to manage your blood pressure, replacing an evening alcoholic drink with hibiscus tea is one of the simplest swaps you can make.