Eggs are one of the most nutritious foods you can eat. They provide high-quality protein, essential vitamins like B12 and D, and minerals such as selenium, phosphorus, and iron. Because of their rich nutrient profile, eggs are often considered a superfood that supports muscle strength, immunity, and brain health. However, the time you eat them also matters. Many people enjoy eggs in the evening, but consuming them too close to bedtime may create extra pressure on the kidneys and increase the risk of certain health problems.
1. Protein Overload on the Kidneys
Eggs are an excellent source of animal protein. While protein is vital for muscle repair and growth, excessive intake—especially late at night—can be stressful for the kidneys. When you sleep, your body naturally slows down many functions, including digestion and filtration. Eating a protein-heavy food like eggs before bedtime forces the kidneys to work harder to process waste products such as urea and creatinine. Over time, this additional strain may contribute to reduced kidney efficiency, especially in people who already have mild kidney issues.
2. Risk of Kidney Stone Formation
Egg yolks are rich in phosphorus and also contain purines, which can increase uric acid levels in the body. High uric acid is one of the risk factors for kidney stone formation. Consuming eggs late in the evening, when water intake is usually lower, may increase the chance of crystal buildup in the kidneys. Without enough hydration, the concentration of waste products rises, which can contribute to the development of kidney stones.
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