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.
Caffeine per Day: How Much Is Really Safe
Three cups of coffee before noon, a cola in the afternoon – and by bedtime you’re wondering why you can’t fall asleep. Caffeine is the world’s most popular pick-me-up, yet...
L-Theanine and Caffeine: Why This Combination Is So Popular
Few combinations in the world of dietary supplements are as sought-after as L-theanine and caffeine. Both compounds occur together naturally in green tea, and it's precisely this natural pairing that...
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