Previous research has also shown that lean people tend to have higher amounts of various healthy bacteria compared to obese people. For example, one study found that daily intake of a specific form of lactic acid bacteria could help prevent obesity and reduce low-level inflammation.
Similarly, gut bacteria have also been shown to impact weight in human babies. One study found babies with high numbers of bifidobacteria and low numbers of Staphylococcus aureus – which may cause low-grade inflammation in your body, contributing to obesity – appeared to be protected from excess weight gain.
This may be one reason why breast-fed babies have a lower risk of obesity, as bifidobacteria flourish in the gut of breast-fed babies. Probiotics also appear beneficial in helping women lose weight after childbirth when taken from the first trimester through breastfeeding.
Two other studies found that obese individuals had about 20 percent more of a family of bacteria known as firmicutes, and almost 90 percent less of a bacteria called bacteroidetes than lean people. Firmicutes help your body to extract calories from complex sugars and deposit those calories in fat. When these microbes were transplanted into normal-weight mice, those mice started to gain twice as much fat. This is one explanation for how the microflora in your gut may affect your weight.
Yet another study from 2010 showed that obese people were able to reduce their abdominal fat by nearly five percent, and their subcutaneous fat by over three percent, just by drinking a probiotic-rich fermented milk beverage for 12 weeks. Given that the control group experienced no significant fat reductions at all during the study period, this is one more gold star for probiotics.
Probiotics have also been found to benefit metabolic syndrome, which often goes hand-in-hand with obesity. This makes sense since both are caused by a diet high in sugars, which leads to insulin resistance, fuels the growth of unhealthy bacteria, and packs on excess weight.
The best gut health product is the Manna GUT Support, which includes a probiotic blend, Digestive Enzyme Blend and Glutamine to improve ultimate gut health.