Prevent Kidney Stones
Kidney stones are small lumps that form when waste products crystallize and build up in your kidneys.
They are quite common, and people who get them often get them repeatedly.
Citric acid may help prevent kidney stones by increasing urine volume and increasing urine pH, creating a less favorable environment for kidney stone formation (15Trusted Source, 16Trusted Source).
Just a 1/2-cup (4 ounces or 125 ml) of lemon juice per day may provide enough citric acid to help prevent stone formation in people who have already had them (17Trusted Source, 18Trusted Source).
Some studies also found that lemonade effectively prevented kidney stones, but the results have been mixed. Other studies have shown no effect (19Trusted Source, 20Trusted Source, 21Trusted Source, 22Trusted Source).
Therefore, more well-conducted studies need to examine whether lemon juice affects kidney stone formation (23Trusted Source, 24Trusted Source, 25Trusted Source).
Lemon juice may help prevent kidney stones. However, more quality research is needed.
Protect Against Anemia
Iron deficiency anemia is quite common. It occurs when you don’t get enough iron from the foods you eat.
Lemons contain some iron, but they primarily prevent anemia by improving your absorption of iron from plant foods (26Trusted Source, 27Trusted Source).
Your gut absorbs iron from meat, chicken, and fish (known as heme iron) very easily, while iron from plant sources (non-heme iron) not as easily. However, this absorption can be improved by consuming vitamin C and citric acid.
Because lemons contain both vitamin C and citric acid, they may protect against anemia by ensuring that you absorb as much iron as possible from your diet.
Lemons contain vitamin C and citric acid, which help you absorb non-heme iron from plants. This may prevent anemia. ufabet