Can Transferrin help with Schlaf?

Transferrin is an iron-transport protein, not a direct sleep aid. Iron deficiency can impair sleep via disrupted neurotransmitter synthesis (e.g., dopamine), especially in restless legs syndrome. However, no RCTs show that supplementing transferrin or raising its levels improves sleep. Evidence is limited to mechanistic and observational links. If you have sleep issues, a doctor should check iron status (ferritin, transferrin saturation) before considering any supplement. Consumer tests often measure transferrin as part of iron metabolism, but claims about sleep benefits are not evidence-based.