What are the side effects of protein powder?
Sep 26, 2024
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Protein powder is primarily used to supplement the body's required protein intake. However, excessive or improper use of protein powder may lead to certain side effects, including increased calorie intake, digestive discomfort, risk of osteoporosis, gout induction, and increased burden on the liver and kidneys. Fitness enthusiasts, elderly individuals, or those suffering from malnutrition should pay attention to obtaining protein from daily diets while using protein powder in moderation.
Protein powder is mainly used to supplement the protein required by the human body. However, excessive or improper use of protein powder may lead to certain side effects, including increased calorie intake, digestive discomfort, risk of osteoporosis, gout induction, and increased burden on the liver and kidneys. If any abnormalities occur, medical advice should be sought promptly. The specific analysis is as follows:
1. Increased Calorie Intake
Protein powder itself contains a certain amount of calories. Consuming large amounts of protein powder in addition to regular diet without controlling total calorie intake may lead to weight gain. Individuals aiming for weight loss or maintenance should carefully manage their protein powder intake to avoid unnecessary caloric surplus.
2. Digestive System Discomfort
Some individuals may be sensitive to whey protein in protein powders, leading to digestive issues such as indigestion, bloating, diarrhea, or constipation. Additionally, sugar alcohols or other poorly digestible ingredients sometimes added to protein powders may also cause gastrointestinal discomfort.
3. Risk of Osteoporosis
Excessive intake of protein powder may interfere with calcium absorption in the body and increase urinary calcium excretion. Over time, this may result in greater calcium loss from bones, potentially contributing to osteoporosis and other bone-related diseases.
4. Gout Induction
Protein powders contain purines, which are metabolized into uric acid. Excessive consumption of protein powder can increase purine metabolism, leading to elevated uric acid levels, possibly resulting in hyperuricemia and even triggering gout attacks.
5. Increased Burden on Liver and Kidneys
After ingestion and absorption, proteins from protein powder produce ammonia-containing metabolic byproducts such as uric acid, creatinine, and urea, which must be excreted through the kidneys. Excessive protein intake increases the workload on both the liver and kidneys, and prolonged overconsumption may impair liver and kidney function.
Individuals who require additional protein—such as fitness enthusiasts, older adults, or those suffering from malnutrition—should use protein powder in moderation while also ensuring adequate protein intake from regular diets to maintain overall health and balance.
