Cutting Weight Wrecks Your Gut. A Probiotic Cut Leaky-Gut Markers
Rapid pre-fight weight cuts are notorious for wrecking digestion, and a new randomized trial suggests a probiotic may help. In 24 elite male combat athletes, four weeks of a complex sports probiotic taken twice daily reduced GI symptoms and lowered zonulin, I-FABP, and D-lactate compared with placebo. The probiotic group also had higher SIgA, lower inflammation, and more butyrate-producing bacteria. The study is small, uses a multi-strain product, and reports no performance data, so the findings are promising rather than definitive. Here is what the trial showed and how fighters might apply it.
SLAB51 Probiotic: One Week Added 33 Seconds for Elite Athletes
One week of the multi-strain probiotic SLAB51 helped elite athletes last about 33 seconds longer on a treadmill test, but a single dose did nothing and VO2max didn't change. The randomized, double-blind crossover trial also found higher levels of the antioxidant enzyme SOD before exercise. So what is SLAB51, and why might gut bacteria influence endurance at all? This article breaks down the study design, the numbers, and what athletes can realistically take from them. It also covers the limits: a small sample of elite men and a very short intervention.
Cheap Gut Fibre Beat Placebo for Knee Pain: 1.11-Point Drop
A cheap chicory-root fibre just beat placebo for knee pain in a randomised trial. 20 g/day of inulin cut pain by 1.11 points, past the 1-point threshold for a meaningful change, and it also improved grip strength. Only the inulin groups saw butyrate and GLP-1 rise, hinting at a gut-muscle link. But participants were older adults with knee OA (mean age 67.5), and physiotherapy-supported exercise reduced pain even more (1.55 points). Here's what the study found, what it can't tell us, and how to use it sensibly.