"Posts mentioning
berberine, dubbed “nature’s Ozempic,” have racked up millions of views on the social network TikTok, where some people claim it can help with weight loss, as well as other ailments.
Berberine, a bright-yellow compound, can be extracted from the stem, roots or bark of a variety of plant species. Plants that produce berberine have been used for thousands of years in traditional medicine practiced in China, India and the Middle East—as a salve for stings and bites, to heal wounds and to treat disorders including diabetes, infection and jaundice.
In the U.S., it is available in the form of a pill or powder from a range of manufacturers, though like other supplements, it isn’t regulated by the
U.S. Food and Drug Administration.
Small studies involving people and research in rodents have found that berberine can decrease blood glucose and cholesterol, and improve resistance to insulin. Researchers are exploring its effects on the nervous system and neurodegenerative diseases such as Alzheimer’s, as well as cancer biology.
Still, researchers warn that studies linking the supplement to weight loss are limited, and that other lifestyle changes such as exercise and healthier eating habits might be contributing to shifts. The supplement does have mild side effects including stomach pains, diarrhea and constipation, but it is harmless for most people, according to doctors."
"In Cleveland, some of Dr. Elizabeth Bradley’s patients who are overweight or obese have experienced moderate weight loss of 5 to 10 pounds over a period of a few months.
“I’m pleasantly surprised at the impact,” said Bradley, medical director at the Cleveland Clinic’s Center for Functional Medicine, about the weight loss in her patients, and the drop in cholesterol and blood glucose. She noted that people taking the supplement might also be making other changes to their lifestyle, which could contribute to the changes.
Bradley first began recommending berberine about six years ago as an antimicrobial supplement for patients who had an imbalance in the population of bacteria in their gut. Later she began recommending the supplement for women with polycystic ovary syndrome, a condition that is associated with hormonal imbalance, obesity and infertility. Bradley said that the supplement improves insulin resistance associated with the condition, where cells decrease how well they respond to insulin.
Recently, after doing more research, she began using it for glucose, cholesterol and weight concerns, usually recommending 500 milligrams three times a day or with meals. “I use it judiciously and follow them closely,” she said. People who are breast-feeding or pregnant should avoid the supplement, she added.
It is a very mild agent, according to Lisa Kroon, a diabetes specialist and professor at the University of California San Francisco School of Pharmacy. “It isn’t going to be the quick fix that people are pursuing in terms of weight loss,” she said. Kroon said the so-called placebo effect might be at play, where, “If you believe it is going to help you lose weight, maybe it does.”"
"Berberine’s potential weight-loss effects might be triggered in a similar way to the diabetes drug metformin, said Jim Backes, a clinical pharmacist at the Atherosclerosis and LDL-Apheresis Center at the University of Kansas Medical Center. That drug is associated with modest weight loss because it improves how cells use insulin. Excess insulin in the blood can sometimes make people hungrier, and decreasing insulin levels can reduce that craving, Backes said. But
as far as berberine’s effect on weight loss alone, “The evidence is still weak,” he said.
Evidence about berberine’s health effects from small studies in Asia and Europe have led Backes and his colleagues to test the compound in a U.S. group of patients who have or are at risk of developing metabolic syndrome, a condition characterized by high glucose levels, high blood pressure, high cholesterol and a wide waistline. This pilot study of about two dozen people will closely watch their glucose and cholesterol, and track weight loss and waist circumference, he said.
Backes warned that the quality of berberine supplements varies widely among brands. Of 15 different berberine products sold in the U.S., Backes and his colleagues found that only six of those products contained
at least 90% berberine, they reported in the Journal of Dietary Supplements in 2017.
“With some products, you might get 100%, berberine, you might get 33%, berberine. But then, what’s the other 67%? We don’t always know,” he said. “I would say be very careful.”
Researchers warn studies linking berberine supplement to weight loss are limited
www.wsj.com
