Practical Tips

Hepcidin after an iron dose closes the intestine for a day. What exactly did Moretti 2015 and Stoffel 2017 measure: doses, populations, results, and EFSA's limit.

THC, CBD and sleep architecture. What polysomnography showed in 1449 individuals, why the number 20-30% REM suppression has no source, and what is unknown about cessation.

MCT or olive oil as a carrier for CBD oil? What has really been measured, how much a fatty meal gives, and why the advantage of MCT is not confirmed in humans.

B vitamins without marketing: functions of the eight vitamins, why B12 causes trouble, how much metformin takes away, and where EFSA set the limit for vitamin B6.

Ranking of 8 herbs and supplements for the urinary tract according to the strength of evidence: cranberry, D-mannose, horsetail, magnesium. What studies have shown, and what is just tradition.

Dietary supplements do not undergo clinical trials. Check what must be on the label, how to read the NRV percentage and ingredient forms, and what the GIS notification means.

How many cases and deaths there were, what the bronchoalveolar lavage fluid study showed, and why the CDC speaks of a strong correlation rather than a proven cause.

H4CBD is tetrahydrocannabidiol, a hydrogenated analog of CBD known since 1940. Check how it is produced, whether it is psychoactive, and what Polish law says about it.

HHC-O has been a controlled substance in Poland since 2023, and HHC-P was added to the list in 2025. Check how they differ and what research says about them.

Live resin and live rosin: how they are made, what they really differ in, what studies confirm about terpenes, and why they are not legally sold in Poland.