Gut bacteria have been associated with obesity, leading some to theorize that altering the composition of gut bacteria to resemble that of healthy individuals may promote weight loss. However, this logic has its flaws, as it remains uncertain whether gut bacteria are a direct cause of obesity. Scientific reviews have yielded mixed findings. In 2015, researchers identified only four rigorously conducted studies examining the impact of probiotics on weight loss, concluding that they were ineffective. Conversely, a more recent review of 25 randomized human trials suggested that probiotics might indeed have a modest effect on body weight and BMI. Although the weight loss observed was minimal, the researchers noted that even a slight average reduction could significantly benefit public health by lowering blood pressure and reducing the risk of type 2 diabetes.
Research is ongoing as scientists explore various probiotic strains, their effects on different individuals, and methods to ensure probiotics survive the digestive process before reaching the gut. The probiotic ingredient market is thriving in the United States, valued at approximately $36.6 billion in 2015, primarily through functional foods and beverages, as reported by Global Market Insights. There is also an increasing interest in probiotic supplements, which have been promoted as remedies for a wide array of issues, from digestive problems to acne and depression. However, these claimed health benefits are strain-specific, meaning consumers must be aware of what they are consuming. Given the rising acceptance of probiotics in supplement form, a weight loss application seems promising.
The North American market for weight loss and weight management products is the largest globally, representing about one-third of worldwide sales, according to Technavia. Most revenues arise from meal replacement products and weight loss supplements. As consumers consider these options, they may also wonder, “Can calcium citrate upset your stomach?” This question highlights the importance of understanding individual reactions to various supplements, as the effects can vary widely from person to person. Therefore, it is crucial for individuals to be informed about the specific strains and ingredients they are incorporating into their diets, especially when seeking the potential benefits of probiotics for weight management.