Guides
In the Scheunengut guide, we explain vitamins, minerals, plant compounds and dietary supplements clearly and with a solid scientific grounding – from correct intake to the right product for you. Use the search or the topic filters to quickly find what you need.
Vitamin Deficiency: The Most Common Gaps at a Glance
Not every theoretically possible vitamin deficiency shows up equally often in real life. Looking at dietary surveys and lab values across Germany, three candidates stand out as the ones that...
Vitamin K Deficiency: Signs and Risk Groups
Vitamin K is the quiet workhorse among the fat-soluble vitamins: hardly anyone talks about it, yet without it blood clotting simply doesn't work. A genuine deficiency is rare in healthy...
Vitamin B2 Deficiency (Riboflavin): Signs
Cracked corners of the mouth that simply won't heal, a burning tongue, or eyes that react sensitively to light: such complaints are quickly blamed on dry heating air or too...
Vitamin A Deficiency: Signs, Causes, and a Caution About Overdosing
Vitamin A is one of those vitamins hardly anyone thinks about, until their eyes get worse at dusk or their skin feels perpetually tight. As a fat-soluble vitamin, it's found...
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