Doctor warns muscle-gain habits may trigger kidney stones
SingTao · 1 SOURCESabout 2 hours ago2 MIN
Summary
A report published on October 26 said some gym-goers who aggressively increase protein intake and rely heavily on protein powder may unknowingly raise their risk of kidney stones. The doctor cited in the report outlined five common kidney-straining muscle-gain traps, including inadequate hydration, high-oxalate food combinations and excessive use of single supplements. The report also said chocolate-flavoured whey protein powder taken together with nuts deserves particular caution because both can be high in oxalate. Hong Kong Adventist Hospital information cited in the report said kidney stones are mineral deposits that form when urine becomes too concentrated, most commonly because of insufficient water intake
Key Points
- High-protein diets generate more metabolic waste, so the body needs more water to flush it out through urine effectively
- If fluid intake is too low, urine becomes overly concentrated, creating conditions that make stone formation more likely
- Spinach, nuts, chocolate and some high-protein powders are high in oxalate, a major component of common calcium oxalate stones
- The report said people who drink chocolate whey protein and also eat large amounts of nuts should watch portion sizes carefully
- Contrary to a common misconception, eating too little calcium may increase calcium oxalate stone risk because calcium helps bind oxalate in the gut
Why It Matters
For Hong Kong readers who exercise regularly, the report suggests that “healthy” bulking routines can backfire if hydration, food balance and supplement use are poorly managed. It also underlines that warning signs such as lower back pain, blood in urine or severe colicky pain should prompt medical attention rather than self-treatment