Articles
Short and sourced: what affects nutrient absorption and how to count what you eat more accurately.
September 28, 2026 · 5 min read
Vitamin D in Ukraine: why winter sun doesn’t help
Why skin makes almost no vitamin D from November to February, how common deficiency is in Ukraine, how it relates to calcium, and what guidelines say about supplements.
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September 27, 2026 · 3 min read
Tea after buckwheat: how drinks affect iron absorption
Why tea and coffee with buckwheat or legumes lower iron absorption, when to drink them instead, and what helps.
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September 27, 2026 · 2 min read
Dry or cooked: why grain and pasta calories differ so much
How many calories are in cooked buckwheat, rice, pasta and legumes, why 100 g dry and 100 g cooked are different things, and how to weigh them.
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September 27, 2026 · 2 min read
Is spinach a source of calcium? Oxalates and mineral absorption
Why only about 5% of the calcium in spinach is absorbed, how kale differs, and better places to get calcium.
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