Navigation
Every page on the site, in one place.
If you are after something specific and cannot find it in the menu, everything is listed here, with a sentence explaining what each page is about.
The main pages
PageHomeThe personalised assessment, searching by need, and the recommendations.PageAll the comparisonsThe complete list of product comparisons, by need.PageAll the long readsThe complete list of long reads.PageMethodHow a product is assessed and ranked, filter by filter.PageSourcesEvery study cited on the site, with a link to check it.PageRejected productsThe well-known products we refuse to sell, and why.PageAboutWho writes this site, their background, and how it is funded.PageLegal noticePublisher, host, affiliation, personal data, health warning.
The product comparisons (5)
Every comparison starts from a concrete problem and ranks products by level of evidence.
SleepSleeping better: what actually works, in orderMagnesium, glycine, melatonin, theanine: sleep supplements ranked by strength of evidence — after the three free levers StrengthBuilding muscle at home: what actually works, without buying anythingGaining muscle at home with no equipment: the three variables that matter, a two-session programme, and the supplements EnergyPersistent fatigue: check before you buyIron deficiency, vitamin D, sleep apnoea, thyroid, sleep debt: what to measure before taking any supplement at all.DigestionBloating and transit: where to actually startDigestion comparison: psyllium, probiotics, fibre, hydration. What the trials say, and what to check before buying.Before you buyWhat to measure before buying any supplement at allFerritin, vitamin D, B12, lipid panel: the four tests that decide whether a supplement helps you or not. What to ask for
The long reads (6)
Long articles for understanding the mechanism before buying anything at all.
SleepSleep, a user’s manual: what neuroscience has actually establishedSleep pressure, the circadian clock, the arousal system: the mechanism explained simply, and what actually works for sleCircadianMorning light: the most powerful lever nobody sellsHow light sets the circadian clock: melanopsin cells, real lux values, light therapy. And what to do when it is dark at MicrobiomeMicrobiome: diversity is eaten, not bought in capsulesPlant diversity, fermentable fibre, short-chain fatty acids: what the research establishes, and the limits of capsules.LongevityZone 2 and VO2max: the two numbers that best predict your longevityUnderstanding zone 2 and VO2max and their link with mortality: mechanisms, the 80/20 protocol, and how to test at home wStrengthMuscle is an organ, not a decorationSarcopenia, 1.6 g of protein per kilo, training close to failure, creatine: why strength matters most after 40.StressChronic stress: what is measured, and what is soldHPA axis, cortisol, heart rate variability: understanding chronic stress, measuring it properly at home, and acting on i
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