The recommended dosage of elderberry will depend on several factors, including the:įor example, a recommended serving size of elderberry syrup is 2 teaspoons (10 milliliters) per day containing 3.8 grams of elderberry.įor lozenges, one manufacturer recommends taking 1 lozenge (4 grams) containing 12 milligrams as needed up to four times per day.Īlways read and follow the dosage instructions from the manufacturer. It’s important to remember that while elderberry could potentially help with flu symptoms, it is not a substitute for the annual flu shot. A larger sample size is needed to understand whether these effects apply to most people.Īlthough the current evidence seems promising, more research is needed to understand how effective elderberry is for treating colds and the flu. However, this study only evaluated data from 180 participants. They concluded that more research is needed to confirm this effect.Ī 2018 research review reported that elderberry supplements helped to relieve upper respiratory symptoms such as: However, the researchers reported that people in the placebo group tended to have longer and more severe colds than those in the elderberry group. There were no significant differences in who developed a cold after airline travel. Other studies have evaluated the effects of elderberry on cold and flu symptoms in humans.Ī randomized, double-blind 2016 study compared the effects of a placebo versus an elderberry supplement among 312 airline passengers. Similarly, a 2012 test-tube study reported that elderberry has several properties that allow it to fight off the flu.Īnd, according to a 2017 study, the plant’s branches and berries contain potent antioxidants. The researchers reported that the extract prevented the growth of certain types of strep bacteria and influenza (flu) viruses. Although the evidence is limited, current research seems to indicate that elderberry may possess properties that help fight off the flu virus and ease cold and flu symptoms.įor example, a 2011 study investigated the antimicrobial properties of liquid elderberry extract in a laboratory setting.
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