Several everyday drinks can meaningfully lower blood pressure, with beetroot juice and hibiscus tea showing the strongest results in clinical trials. Beetroot juice, in particular, has reduced systolic blood pressure by about 8 points in people with hypertension. But the best approach combines more than one option, since different drinks work through different mechanisms.
Beetroot Juice
Beetroot juice is the most clinically studied drink for lowering blood pressure, and the results are impressive. In a phase 2 trial published by the American Heart Association, people with hypertension who drank about one cup (250 mL) of beetroot juice daily saw their systolic blood pressure drop by 7.7 points on average, with peak reductions of about 8.1 points by week six. Those numbers are clinically significant, comparable to what some single medications achieve.
The mechanism is straightforward: beets are rich in dietary nitrate, which your body converts into nitric oxide, a molecule that relaxes and widens blood vessels. This isn’t a subtle effect. It shows up on 24-hour blood pressure monitoring, not just one-off readings in a clinic, which means the benefit holds throughout the day. The main downside is taste. Straight beetroot juice is earthy and strong. Mixing it with apple or carrot juice helps, but avoid versions with added sugar.
Hibiscus Tea
If beetroot juice doesn’t appeal to you, hibiscus tea is a more pleasant-tasting alternative with solid evidence behind it. A USDA-supported trial found that drinking three cups of hibiscus tea daily for six weeks lowered systolic blood pressure by 7.2 points compared to a placebo. People who started with higher readings (129 or above) saw even larger drops: 13.2 points systolic and 6.4 points diastolic.
Hibiscus tea is naturally tart and caffeine-free, so it works well as an iced tea or a hot drink before bed. Look for dried hibiscus flowers (sometimes labeled “agua de jamaica” in Latin American grocery stores) and steep them for five to ten minutes. Avoid commercial hibiscus drinks loaded with sugar, which can work against your blood pressure goals.
Unsalted Tomato Juice
A year-long study of nearly 500 Japanese residents found that drinking unsalted tomato juice lowered systolic blood pressure by about 4 points and diastolic by about 2.4 points in participants with untreated high blood pressure. It also reduced LDL cholesterol, which is a bonus for overall cardiovascular health. The key word here is “unsalted.” Most commercial tomato juices are packed with sodium, which raises blood pressure. Check labels carefully or make your own by blending fresh tomatoes.
Pomegranate Juice
Pomegranate juice works through a mechanism similar to certain blood pressure medications: it contains compounds that block an enzyme your body uses to constrict blood vessels. Researchers have identified specific molecules in pomegranate that bind to this enzyme at multiple points, effectively shutting down its ability to narrow your arteries. Pomegranate also promotes the production of nitric oxide and reduces oxidative stress in blood vessel walls.
The caveat is that pomegranate juice is calorie-dense. A full glass can contain 30 grams of sugar or more. Small servings of four to eight ounces are more practical than drinking it like water.
Green Tea
Green tea offers a more modest benefit. A meta-analysis of randomized controlled trials found it lowers systolic blood pressure by about 2 points and diastolic by about 1.7 points. That’s smaller than beetroot juice or hibiscus tea, but green tea has the advantage of being something most people can drink daily without any adjustment to their routine. The antioxidant compounds in green tea improve blood vessel flexibility over time, so consistency matters more than quantity. Two to three cups a day is a reasonable target.
One thing to keep in mind: green tea does contain caffeine, typically 25 to 50 mg per cup. That’s less than coffee, but if you’re caffeine-sensitive, it could temporarily offset some of the benefit.
Low-Fat Milk
A single cup of milk delivers about 300 mg of calcium (30% of your daily value) and 350 mg of potassium (about 11% of your daily value), both minerals that help regulate blood pressure. Potassium works by relaxing blood vessel walls and helping your kidneys flush out excess sodium. Calcium plays a role in how your blood vessels tighten and relax.
Milk also contains small protein fragments called bioactive peptides that block the same vessel-constricting enzyme that pomegranate targets. These peptides form naturally during digestion. Low-fat or skim versions deliver the same mineral and peptide benefits without the saturated fat that can affect heart health over time.
Coconut Water
Coconut water is one of the richest natural sources of potassium you can drink. Eight ounces contain roughly 600 mg of potassium, with some brands reaching 690 mg per serving. That’s substantially more than a banana. Since adequate potassium intake (above 3,500 mg per day) is specifically recommended for preventing hypertension, coconut water is an efficient way to close that gap. Choose plain, unsweetened versions. Flavored coconut waters often add sugar that dilutes the benefit.
Drinks That Can Raise Blood Pressure
What you stop drinking matters almost as much as what you start. Caffeine can spike blood pressure by 5 to 10 points in people who don’t consume it regularly, with the effect lasting anywhere from 30 minutes to two hours. If you already drink coffee daily, your body has likely adapted somewhat, but it’s worth checking: measure your blood pressure before a cup and again 30 to 120 minutes later to see how you respond.
Alcohol is a bigger concern. The 2025 high blood pressure guidelines recommend that women with hypertension have no more than one drink per day, and men no more than two. The guidelines also note that abstinence is the ideal goal for blood pressure management. Even moderate drinking above these thresholds raises both systolic and diastolic readings over time.
A Note on Grapefruit Juice
Grapefruit juice is sometimes mentioned as a heart-healthy drink, but it poses a specific risk if you take calcium channel blockers for blood pressure. A compound in grapefruit disables an enzyme in your intestinal lining that normally limits how much medication enters your bloodstream. With that enzyme blocked, drug levels can climb higher than intended, potentially dropping your blood pressure too low or slowing your heart rate. If you’re on any blood pressure medication, check with your pharmacist before adding grapefruit juice to your routine.
Combining Drinks for Better Results
These drinks work through different pathways: beetroot juice increases nitric oxide, hibiscus tea acts as a natural diuretic and antioxidant, milk supplies minerals and enzyme-blocking peptides, and potassium-rich drinks like coconut water help your kidneys excrete sodium. Because the mechanisms don’t overlap much, combining two or three of these into your daily routine can potentially stack the benefits. A practical approach might look like a glass of beetroot juice in the morning, green tea in the afternoon, and hibiscus tea in the evening, with coconut water or low-fat milk filling in during the day. None of these replace medication if your doctor has prescribed it, but as a dietary strategy, the cumulative effect across several drinks can be substantial.