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• Systematic review and Bayesian network meta-analysis Day level publication date, verified against the PubMed record. PMID sits mid band among its neighbours.

  A review of a hundred and nineteen supplement trials graded almost all of its own comparisons as very low certainty

  A Bayesian network meta-analysis lined up dietary supplements against each other for lower body power and jump height, then graded every comparison it produced. Of 1,636 pairwise comparisons, 17 were rated moderate certainty and 1,564 were rated very low.

  Journal of the International · Sun et al. · Guangzhou Sport University · 1 October 2026 · PMID 42821324

  supplementsresearch-methodsmeta-analysisstrength
• Double blind counterbalanced crossover First published online 20 August 2026. Still online ahead of print, so no volume, issue or page range exists yet.

  A capsaicin capsule before lifting left leg press repetitions and jump height unchanged, and expectancy did not move them either

  Sixteen advanced resistance trained men lifted and jumped under capsaicin, placebo and no supplement at all. All three conditions came out the same. The third arm was there to catch a belief effect, and it did not find one.

  Nutrition and Health · de et al. · Paulista University · 20 August 2026 · PMID 42623016

  supplementsresearch-methodsrecoveryendurance-fuelingstrength
• Randomised controlled trial with supervised training PubMed records 16 April 2025 as the publication date. Volume 22, issue 1, article 2492184.

  With calories and protein matched, the lifters on a sixteen eight window did less total work and their squat went up less

  Seventeen well trained lifters, eight weeks of supervised training, both arms ten percent above maintenance at 2.2 grams of protein per kilogram, and intake statistically matched. The fasting arm did fewer repetitions, rated its daily energy lower, and gained about four kilograms less on the squat.

  Journal of the International · Blake et al. · the Center for Sport Performance at California State University Fullerton · 16 April 2025 · PMID 40241374

  strengthproteinmetabolismendurance-fueling
• Four arm randomised controlled trial PubMed records 19 March 2025 as the publication date. Volume 22, issue 1, article 2481127.

  A ten hour eating window on its own removed two and a third kilograms of lean tissue and no fat at all

  Four arms for eight weeks: a ten hour eating window, resistance training, both, and neither. The window alone dropped more than two kilograms of body weight, and the fat mass did not move. What came off was lean tissue. Adding the training changed the answer completely.

  Journal of the International · Cui et al. · the Institute of Human Movement and Sports Engineering at Zhejiang Normal University · 19 March 2025 · PMID 40108888

  strengthmetabolismproteingeneral-nutrition