https://scitechdaily.com/scientists-reveal-new-weight-loss-hack-drink-this-berry-juice-every-day-to-burn-more-fat/
Scientists Reveal New Weight Loss Hack: Drink This Berry Juice Every Day To Burn More Fat
Study involved 19 volunteers. They had to have BMI greater than 25 (classified as overweight).
Study in the link below:
We previously demonstrated that 600 g of blackberries per day for 1 week both increases insulin sensitivity, as evidenced by a meal tolerance test, and also increases fat oxidation, demonstrated via a reduction in the respiratory quotient from 24 h of indirect calorimetry [12]. The same observations were not unequivocally reproduced by a mixed-berry intervention [13]. Therefore, anthocyanin type and daily dose require further scrutiny to determine which anthocyanins and at what threshold doses may offer benefit to weight management and glucose homeostasis.
We recently studied elderberry juice due to its remarkably high density of cyanidin-based anthocyanins [14]. In that pilot study, we demonstrated tolerability of 177.5 g of elderberry juice daily for 1 week, and possible modulation of substrate oxidation. Additionally, we also confirmed the prospective anti-obesity effects of elderberry juice powder using a diet-induced obese rodent model [15]. In that 12-week study, rodents fed a 45% fat diet supplemented with 10% elderberry juice powder did not present an obese phenotype compared to the control group [15]. Main findings included a normalized growth curve and body composition and improved fasting blood insulin despite eating significantly more kilocalories and maintaining the same physical activity as control mice. In the gut microbiome, the elderberry intervention increased Bifidobacterium, Akkermansia, and Anaeroplasma relative abundances, suggesting the physical and metabolic improvements are at least partially driven by changes to the microbiome [15].
The objective of this current human study is to determine if the metabolic benefits observed with other anthocyanin-rich berries extend to elderberries. To accomplish this, we performed a short-term controlled feeding study in overweight but healthy adult volunteers in a randomized, placebo-controlled crossover clinical trial. Major study endpoints included blood glucose and insulin response to a high-carbohydrate meal challenge, indirect calorimetry, and profiling of the fecal microbiome.
The findings also corroborate the positive effects of anthocyanin rich berry consumption on blood glucose homeostasis and fat oxidation, where a 24% reduction in the serum glucose area-under-the-curve, and 27% increase in fat oxidation were observed with the EBJ treatment. The findings suggest that anti-obesity effects of EBJ observed in translational research models do extend to humans.
The researchers are so bullish on elderberry anthocyanins, that they applied for a patent.
https://wsu.technologypublisher.com/technology/53952
A cursory search shows that blackberry juice (or powder) is a little less expensive than elderberry juice (or powder).