Yes, eggs can contribute to making urine more acidic. However, the effect depends on several factors, including the type of egg (whole egg vs. egg white) and the overall diet.
The Role of Eggs in Urine Acidity
Animal proteins, including eggs, contain sulfur-containing amino acids. During digestion, these amino acids are metabolized, producing sulfuric acid. This acid then affects the body's pH balance, potentially leading to more acidic urine. [This is supported by multiple sources](https://www.vaia.com/en-us/textbooks/chemistry/organic-and-biochemistry-for-today-8-edition/chapter-15/problem-64-what-types-of-food-can-make-urine-acidic-what-typ/, https://www.healthline.com/nutrition/the-alkaline-diet-myth).
However, it's important to note that:
- Whole eggs have a relatively neutral pH. While the sulfur-containing amino acids contribute to acidity after digestion, the overall pH of a whole egg is closer to neutral. This is confirmed by research.
- Egg whites are slightly alkaline. Unlike the yolk, egg whites have a naturally alkaline pH and can even have a buffering effect. This again, changes after digestion. This is also confirmed by research.
- Dietary context matters. The impact of eggs on urine acidity depends on the entire diet. A diet high in acid-producing foods will exacerbate the effect of eggs, while a balanced diet might lessen the impact. [This is supported by various sources](https://www.webmd.com/diet/acidic-foods-what-to-know-about-acidic-foods, https://www.healthline.com/nutrition/the-alkaline-diet-myth).
Therefore, while eggs do contain components that can contribute to acidic urine, the overall effect is complex and depends on various factors. It's not simply a case of eggs always making urine acidic.