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.
St. John's Wort: Side Effects & Interactions Explained
St. John's wort is one of Europe's best-known herbs – and one of the few where "herbal" doesn't mean "uncomplicated." Here's why: St. John's wort changes the way your body...
Phenylalanine: Side Effects and Safety
"Contains a source of phenylalanine" — that phrase sits on every can of diet soda, and it trips a lot of people up: what does a sweetener warning have to...
L-Tyrosine: Side Effects You Should Know
Taking L-tyrosine, or thinking about starting — while also having antidepressants, thyroid medication, or blood pressure drugs in your cabinet? Then it's worth taking a closer look before you swallow...
Nattokinase: Side Effects, Risks & Safety
Nattokinase has a reputation as a powerful enzyme for circulation and healthy blood flow — which is exactly why it deserves a closer look than most other supplements before you...
St. John’s Wort: Better Avoided During Pregnancy
St. John’s Wort is one of the best-known herbs for mood support — which is exactly why it regularly ends up in the hands of women who are pregnant, breastfeeding,...
Berberine Side Effects: Facts, Not Fear-Mongering
You searched for “berberine side effects” because you want to know what you’re getting into — not because you need something to worry about. Here’s the good news first: most...
Nutrients and Statins: Coenzyme Q10 and What You Should Know
Anyone who takes statins on a long-term basis will sooner or later come across the question of whether certain nutrients play a role. The name that comes up most often...
Nutrients and Thyroid Medication: Getting L-Thyroxine Timing Right
If you take L-thyroxine, you probably already know the rule of thumb from your pharmacy: in the morning, on an empty stomach, a while before breakfast. The reason behind it...
Hypericin and Hyperforin: The Active Compounds in St. John's Wort
Anyone who looks into St. John's wort (Hypericum perforatum) quickly comes across two names: hypericin and hyperforin. They are considered the characteristic compounds of the plant and appear on many...
Supplements and Coffee: What Goes Well Together
For many people, the morning starts with two rituals: the first cup of coffee and the handful of capsules next to it. Convenient, no question. But not every nutrient gets...
Food Supplements and the Pill: What to Keep in Mind
Millions of women take the pill - and many of them also reach for food supplements, whether it's magnesium for cramps, vitamin D in winter, or iron for heavy periods....
Food Supplements and Blood Thinners: Caution With Vitamin K and Co.
A blood thinner saves lives, but it's also a sensitive medication whose effect is shaped by a surprising number of factors, your daily diet included. Anyone who also reaches for...
Buying St. John's Wort: Hypericin & What to Look For
St. John's wort (Hypericum perforatum) is one of the best-known plants in European herbal tradition and has been cultivated since antiquity. Its name refers to the feast of St. John...
St. John's wort: forms, use and interactions
Few native medicinal plants are as well known, and at the same time as underestimated, as St. John's wort. Its golden-yellow flowers greet us along every summer roadside, and the...
Which supplements should you not take together?
You stand in front of a little collection of jars each morning and wonder: just knock them all back at once? The short answer: the vast majority of vitamins and...
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