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 B1 (Thiamine): Effect, Requirement, Sources
Imagine you have a vault full of energy – your carbohydrates – but no key. That key is precisely vitamin B1 (thiamine). Without it, the energy stays locked inside the...
Nutrients for Cell Division and Cell Renewal
As you read this sentence, millions of cells are dying in your body – and just as many are being newly formed. Your skin, your blood, your intestinal lining: all...
Nutrients for Cognitive Performance
Exam season, one meeting after another, the tax return still waiting in the evening – and your head feels like it's wrapped in cotton wool. Cognitive performance is no accident:...
Nutrients for Your Eyes at the Screen
The short answer: Vitamin A, riboflavin (B2) and zinc contribute to the maintenance of normal vision; the omega-3 fatty acid DHA does so at an intake of 250 mg per...
Nutrients for the immune system: the big overview
The short answer: Vitamin C, vitamin D, zinc and selenium contribute to the normal function of the immune system – complemented by vitamin A, vitamin B6, vitamin B12, folate, iron...
Synthetic or Natural Vitamins? The Comparison
The short, honest answer: with most vitamins, the molecule from the laboratory is chemically identical to the one from the plant – your body recognises no difference. „Natural“ sounds like...
Vitamin C Deficiency: Signs of a Low Supply
Vitamin C deficiency – the honest short answer: possible signs such as persistent fatigue, delayed wound healing or changes to the gums are non-specific and can have many other causes....
Vitamin D Deficiency: Signs of a Low Supply
Constantly tired, run-down, low mood in winter – and before you know it, you're googling „vitamin D deficiency“. First and foremost, and quite plainly: No single sign proves a low...
Multivitamin or Single Supplements? What Makes Sense?
In short: A multivitamin delivers many nutrients in one serving – convenient and broad. Single supplements allow a precise dose tailored to your needs. Anyone with a known individual requirement...
Vitamin C: Acerola or Synthetic? The Comparison
Acerola or synthetic vitamin C – the short answer: Chemically, vitamin C is the same molecule in both cases, ascorbic acid. The difference lies in the packaging: acerola delivers the...
High-dose vitamin C: how much makes sense?
High-dose vitamin C – the direct answer: Very high single doses do not automatically deliver more, because the proportion absorbed falls as the amount rises. Vitamin C is water-soluble, the...
How Long Does It Take for Vitamin D to Work?
You started taking vitamin D in November and after three days you wonder: shouldn’t I be noticing something by now? The honest answer: Vitamin D is a marathon, not a...
Vitamin K: blood clotting, bones & K2
You dutifully take your vitamin D and your calcium – and yet the letter K suddenly appears on every nutrient list. Rightly so: vitamin K is the bouncer that decides...
Vitamin E: the fat-soluble antioxidant
When butter goes rancid or a sliced apple turns brown, you're seeing oxidation in action – oxygen attacks fats and cells. It's precisely against this kind of attack that vitamin...
Vitamin A: effects, daily requirement & beta-carotene
Carrots are good for your eyes – every child knows this saying. It isn't wrong, but it tells only half the story. Because vitamin A comes to you in two...
Can you take too many vitamins?
"More helps more" – this reflex runs deep. With vitamins, though, it's a fallacy that can backfire in the worst case. Answered directly: yes, you can take too many vitamins...
Micronutrients After 50: What Your Body Now Needs to Watch
From around 50, five nutrients deserve particular attention: vitamin B12 (absorption declines), vitamin D (skin production drops), calcium and magnesium (bones and muscles) as well as omega-3 (heart and brain)....
Vitamin D: Dosage, Blood Level & Winter
„How much vitamin D should I actually take?" – few questions about food supplements are googled more often. The honest short answer: The right amount can't be given as a...
B Vitamins: The Complete Overview from B1 to B12
They are often called the "powerhouse team" among the vitamins – and that reputation is well earned. The eight B vitamins work in your body like a well-rehearsed workshop crew:...
Nutrients for Vegans: Keeping an Eye on the Critical Micronutrients
The short answer first: A vegan diet covers almost everything – with one clear exception. You have to supplement vitamin B12; there is no way around it. In addition, it...
Vitamin C: Effects, Daily Requirement & the Best Source
A single red bell pepper covers your entire daily requirement of vitamin C – and does so twice over. Even so, hardly any vitamin is as popular a dietary supplement...
Beautiful Skin, Hair & Nails from Within: Biotin, Zinc & Selenium
Beautiful skin, hair and nails from within: biotin, zinc and selenium contribute to their maintenance, plus vitamin C for collagen formation – along with care tips.
More Energy: Magnesium, Iron & B Vitamins Against Tiredness
Less tiredness, more energy: magnesium, iron and B vitamins contribute to the reduction of tiredness and fatigue and to a normal energy-yielding metabolism – plus lifestyle tips.
Supporting Your Immune System Naturally: Vitamin C, D & Zinc
Which nutrients support the immune system: vitamin C, D and zinc contribute to its normal function – plus lifestyle tips and what to watch out for when it comes to your intake.
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