Practical Tips

Ferritin below 50 µg/l and fatigue despite normal morphology: what did the Vaucher 2012 study measure, whose threshold is this, and who funded the trial.

What exactly was compared in studies on creatine before and after training and on the loading phase, what were the results, and what the ISSN position does not resolve at all.

The current Cochrane review from 2023: 7 studies, 1319 women, RR 0.53 for gestational diabetes, but the certainty of evidence is low. We check what this means.

Cochrane review 2019: 38 studies, 10,377 participants, NNTB 8. We check if the dose of NAC changes the effect and why older studies gave better results.

Does iron deficiency harm learning and does supplementation reverse it? Three meta-analyses and a 10-year observation: populations, numbers, and limits of conclusions.

De Flora's 1997 study: 262 individuals, 6 months, symptomatic flu in 25 percent of infected compared to 79 percent on placebo. We check what this means today.

Which strains performed better than placebo, which did not, how significant this advantage is, and why yeast from an ampoule is not neutral for every traveler.

D-mannose was supposed to prevent bladder infection recurrences. The largest placebo study did not confirm its effectiveness. What is known today and what works.

Zinc and semen quality: a meta-analysis of 20 studies says one thing, the largest randomized trial on 2370 couples says another. We compare both results and explain the difference.

What to do when edible CBD has worked stronger than you planned: symptoms from controlled studies, situations requiring a doctor, and the truth about combining with alcohol.