how to choose supplements
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ArticlesHow to choose vitamin C, vitamin D and zinc: label, doses and forms
How to compare vitamin C, vitamin D and zinc by the label: units, % NRV, daily dose, price per day, product forms and EFSA upper intake levels.
October 07, 2026 12 min -
ArticlesHow to choose magnesium, B vitamins and melatonin
Magnesium, B vitamins and melatonin by the label: magnesium itself vs the compound, B6 in complexes and the 12 mg upper level, forms of B12, melatonin 1 mg.
October 07, 2026 11 min -
ArticlesHow to choose calcium, vitamin D and collagen
Calcium, vitamin D and collagen by the label: the calcium in each salt, pairs with D3 and K2, grams of collagen per serving, allergens and EFSA upper levels.
October 07, 2026 12 min -
ArticlesHow to choose collagen, biotin and zinc
Collagen, biotin and zinc by the label: grams of collagen per serving, marine or bovine, biotin 10,000 µg and blood tests, zinc in complexes, price per day.
October 07, 2026 11 min -
ArticlesHow to choose magnesium: compounds, dose and reading the label
One label says 1000 mg, another 133 mg – but that does not mean the first contains several times more magnesium. We explain how to read the magnesium content, compare compounds and choose a format that suits you.
October 02, 2026 5 min
