Why Lemon Juice is Not Acidic if We Drink it Even After Having pH 2.2?

Acidity of Lemon Juice:
- Lemon juice is naturally acidic due to the presence of citric acid, which gives it a pH around 2.2.

Buffering Capacity:
- Despite its low pH, lemon juice has a high buffering capacity. This means that it can resist changes in pH when an acid or base is added to it.

Body's Buffering System:
- When we consume lemon juice, it enters our body and interacts with our stomach acid, which has a pH around 1.5-3.5.
- The stomach has its own buffering system that helps maintain its acidic pH, even when acidic substances like lemon juice are consumed.

Neutralization:
- When lemon juice mixes with stomach acid, it undergoes neutralization. This process involves the reaction between an acid (lemon juice) and a base (stomach acid) to form water and a salt.
- The neutralization reaction helps balance out the pH levels, making the overall mixture less acidic.

Metabolism:
- Once lemon juice is metabolized in the body, its components are broken down and utilized for various functions.
- The acidity of lemon juice is not directly transferred to the bloodstream as it gets metabolized and excreted by the body.
In conclusion, while lemon juice may have a low pH, its buffering capacity, interaction with the body's buffering system, neutralization in the stomach, and metabolism all play roles in why it does not have as acidic of an effect when consumed.