5% acetic acid.
Because it is highly acidic, it should generally be diluted before drinking.
## Why Do People Take 1–2 Tablespoons Before Meals?
One common routine involves mixing approximately one or two tablespoons of apple cider vinegar into a glass of water and drinking it before or with a meal.
Supporters claim it may:
* Improve digestion
* Reduce bloating
* Help stabilize blood sugar
* Increase fullness
* Improve nutrient absorption
Some of these claims are more credible than others.
The strongest evidence relates to **blood glucose after meals**, not to treating digestive disorders.
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