Protein Deficiency: Symptoms, Causes, and How to Prevent It
Every year, over 14 million children worldwide get kwashiorkor, a severe protein deficiency . It causes swollen bellies and hair loss, often after big disasters like hurricanes or droughts. In the U.S., protein deficiency also affects vulnerable groups, like the elderly and athletes who don't realize their protein needs. Protein is key for muscles, enzymes, and hormones. But our bodies can't store it. Without enough protein each day—like 0.36 grams per pound of body weight—deficiencies happen. Symptoms include brittle nails and a weakened immune system, and in extreme cases, life-threatening conditions. Even small gaps in protein intake matter. Athletes might need double the usual 0.8 grams per kilogram of body weight. People who eat plants can get complete proteins from soy, quinoa, or buckwheat. But without balanced meals, risks increase—from muscle loss to impaired healing. Key Takeaways Severe protein deficiency impacts over 14 million children annually, often after natur...