However, other studies have produced conflicting results. Some studies have shown that hibiscus tea may reduce blood cholesterol and triglycerides in those with diabetes and metabolic syndrome. More large-scale studies examining the effects of hibiscus tea on blood cholesterol and triglyceride levels are needed to determine its potential effects on the general population. In fact, a review of seven studies including 362 participants concluded that hibiscus tea did not significantly reduce total cholesterol or triglyceride levels ( 13).įurthermore, most studies showing a benefit of hibiscus tea on blood fat levels have been limited to people with specific conditions like metabolic syndrome and diabetes. However, other studies have produced conflicting results regarding hibiscus tea’s effects on blood cholesterol. Plus, a 2022 review found that hibiscus tea could reduce levels of LDL (bad) cholesterol more effectively than other types of tea and a placebo ( 12). After 1 month, those who drank hibiscus tea experienced increased levels of HDL (good) cholesterol and decreased levels of total cholesterol, LDL (bad) cholesterol, and triglycerides ( 10).Īnother older study in those with metabolic syndrome showed that taking 100 milligrams (mg) of hibiscus extract daily was associated with decreased total cholesterol and increased HDL (good) cholesterol ( 11). In one 2009 study, 60 people with diabetes were given either hibiscus tea or black tea. In addition to lowering blood pressure, some studies have found that hibiscus tea may help lower blood fat levels, which are another risk factor for heart disease ( 9). However, it should not be taken with blood pressure medications to prevent an interaction. Some studies have found that hibiscus tea may lower systolic and diastolic blood pressure. While hibiscus tea may be a safe and natural way to help lower blood pressure, it is not recommended for those taking medications used to treat high blood pressure, as it may interact with these drugs ( 8). Similarly, a 2015 review of five studies found that hibiscus tea decreased both systolic and diastolic blood pressure by an average of 7.58 millimeters of mercury (mmHg) and 3.53 mmHg, respectively ( 7). After 1 month, those who drank hibiscus tea had a greater decrease in systolic and diastolic blood pressure, compared to the placebo ( 6). In one study, 46 people with high blood pressure were given hibiscus tea or a placebo. Several studies have found that hibiscus tea may lower both systolic and diastolic blood pressure. High blood pressure is also associated with an increased risk of heart disease ( 5). Over time, high blood pressure can place extra strain on the heart and cause it to weaken. One of the most impressive and well-known benefits of hibiscus tea is that it may lower blood pressure. Additional studies are needed to determine how this may translate to humans. summaryĪnimal studies have found that hibiscus extract has antioxidant properties. More studies are needed to determine how antioxidants in hibiscus tea may affect humans. However, keep in mind that these studies used concentrated doses of hibiscus extract rather than hibiscus tea. One study in people with Marfan syndrome, a disorder that affects connective tissue, found that an infusion with hibiscus extract reduced oxidative stress and increased antioxidant levels in the blood ( 3).Īnother animals study had similar findings, showing that hibiscus extract helped protect against cell damage in rats ( 4). Hibiscus tea is rich in powerful antioxidants and may therefore help prevent damage and disease caused by the buildup of free radicals. Share on Pinterest Image credit: Stocktr/ShutterstockĪntioxidants are molecules that help protect against compounds called free radicals, which cause damage to your cells ( 2).
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