Thorne Resveratrol Complex Review

Curcumin has the strongest support here. A review of 103 placebo-controlled trials found it lowered body weight with high certainty ^[1], and a review of 111 trials found about 0.8 kilograms more weight loss than placebo ^[2]. In women with polycystic ovary syndrome it slightly lowered body mass index ^[3], and 35 women with a large waist lost body mass on 500 milligrams daily ^[4]. Green tea gave a small weight loss in pooled trials, though certainty was low ^[2], and lowered weight and body fat in another review ^[5]. Trials in women that worked used 500 milligrams or more ^[6][7], more than the 200 milligrams a day here, and some trials in women found no benefit ^[8][9]. Resveratrol lowered weight only at 500 milligrams a day or more, or after 12 weeks or longer ^[10]. This product gives 200 milligrams, and other pooled trials found no consistent weight change ^[11]. For pterostilbene, 200 milligrams a day did not change weight compared with placebo ^[12]. The only human quercetin study found no clear change in waist size ^[13]. Animal and cell studies are never counted.

The panel treats green tea and curcumin as the two main ingredients, and both draw mostly positive use. On green tea, five of the ten drink it or use it, mainly for focus, calm energy and visceral fat loss, and two of them suggest adding lemon so more of its catechins survive digestion, while one cautions that very high doses of green tea extract could harm the liver and another found it did not extend life in animal studies. On curcumin, the panel is split between those who take or recommend it for inflammation, joint pain and immune support and those who are neutral, with one who takes 500 mg daily in a phytosomal or liposomal form that absorbs better, one who notes it barely absorbs without black pepper, one who advises it only for specific purposes with a doctor, and one who advises avoiding it in pregnancy. Resveratrol is a smaller ingredient in this product, and the panel is mostly doubtful, with one who stopped taking it for lack of clear benefit and another who calls it useless, though two others have used or recommended it.