How are MC4R and Allergie related?

MC4R (melanocortin 4 receptor) is primarily known for its role in energy homeostasis and appetite regulation. A direct relationship with allergies is not well established in the scientific literature. While melanocortins have some immunomodulatory properties, such as anti-inflammatory effects, specific associations between MC4R variants and allergic conditions (e.g., hay fever, asthma) remain weak and largely based on mechanistic or animal studies. The strongest evidence for MC4R is in obesity genetics (e.g., rs1800206). A consumer DNA test analyzing MC4R SNPs cannot provide meaningful information about allergy risk. Allergy predisposition is polygenic and heavily influenced by environment. Evidence: unclear.