Can Zink help with Schlaf?

Whether zinc can help with sleep is not clearly established by scientific evidence. Zinc is an essential trace element involved in many metabolic processes, including the synthesis of melatonin and modulation of neurotransmitters like GABA, which are relevant for sleep regulation. Some observational studies suggest a link between low zinc levels and poor sleep quality, but interventional trials are scarce and often small. Mechanistic plausibility exists, but the overall evidence is weak and inconsistent. Therefore, zinc supplementation is not recommended as a general sleep aid. If a zinc deficiency is confirmed (e.g., via blood test), supplementation may improve sleep as a secondary effect, but it should not be the first-line approach. High doses can cause adverse effects such as copper deficiency. The provided context does not contain any direct studies on zinc and sleep, so this answer relies on general biomedical knowledge. Evidence grade: mechanistic/unclear. Always consult a healthcare professional before starting supplements.