Zitronentee bei Erkältung – Mythologie!

A persistent misconception involves consuming hot lemon-infused tea during colds with the expectation of expedited recovery. While it is widely acknowledged that ascorbic acid present in citrus fruits fortifies immune defenses and reduces disease susceptibility, the reality proves more nuanced. A critical yet frequently overlooked factor is the thermolability of vitamin C—its molecular structure degrades when exposed to elevated temperatures. Submerging a lemon slice in boiling water merely enhances the beverage’s flavor profile while entirely nullifying the nutrient’s biological potency. This phenomenon equally applies to soluble vitamin supplements, whose active constituents lose efficacy upon contact with hot liquids. Although consistent vitamin C intake may support immune function, acute high-dose supplementation during illness fails to yield the anticipated benefits. Far more impactful is long-term prophylaxis—year-round dietary incorporation of ascorbic acid-rich foods, which may offer more robust protection against infections.