Research notes, ingredient deep-dives and honest answers from the NOTFORTOMORROW editorial team.
80 articles
An extract ratio such as 10:1 means that about 10 g of dried plant went into each gram of extract. Why a higher ratio is not a stronger product, what "equivalent to 5,000 mg" really says, how a carrier changes the number, and what EU law does and does not require on the label.
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caffeineNatural and synthetic caffeine are the same molecule, and two head to head trials found the same blood levels from both. How laboratories tell them apart by their isotopes, how often a natural label turned out to be wrong, and what an EU label has to say about caffeine.
caffeineA break only resets something where the body adapts, as it does to caffeine. Vitamin D and B12 run down slowly, so a short pause changes little. What the studies measured for caffeine, creatine, vitamin D, B12 and zinc, and how long a break must last to tell you anything.
EU lawA proprietary blend gives one total weight and a list of names, but not how much of each ingredient you get. What US and EU law require, why the order of the list sets only ceilings, and what lab studies found when they measured what was inside.
biotinYes. Biotin can make thyroid, hormone and troponin tests read falsely high or falsely low, and vitamin C can hide glucose and blood on a urine dipstick. How the interference works, which tests are affected, how long to pause before a blood draw, and why EU medicines with 150 µg of biotin must warn you while supplements do not.
evidenceAbsorbed just as well in the two studies that exist, but usually a smaller and less predictable dose, with sugar or polyols attached. What the gummy trials really show, why minerals rarely fit, what "sugars free" and the laxative warning mean on an EU label, and five label checks to make before you buy.
evidenceYes, you can, but an upper limit is not the dose where harm starts. How EFSA calculates its tolerable upper intake levels, why niacin and folate carry limits that depend on the form, what "no upper limit" really means, and how our own labels compare with the numbers.
absorptionMost famous supplement clashes were measured in water on an empty stomach and do not survive a meal. What the absorption studies actually found for iron, zinc, calcium, copper, manganese and the fat-soluble vitamins, and the three pairings that are worth managing.
evidenceYour body parts with a nutrient in one of three ways: the kidney, the gut, or not at all. A look at renal thresholds, storage depots and the one mineral that has no exit route, with every number taken from a verified source.
EU regulationSometimes yes, and sometimes the opposite. Natural vitamin E reaches the blood at about twice the concentration of the synthetic form. Synthetic folic acid beats food folate. For vitamin C, human studies find no difference at all. The honest answer, nutrient by nutrient, and what EU law actually controls.
capsulesThree different questions get treated as one. Opening an immediate-release capsule costs you taste masking and a little powder. Crushing a coated tablet destroys the mechanism that decides where the dose lands. Splitting is the one people trust most, and the evidence says the halves are rarely halves.
folateThe jar price is the wrong unit. A look at what really sits inside a supplement price: the chemical form of the nutrient, the dose per serving, purity testing, format and packaging, and why cost per day is the only honest comparison.
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