What are all the foods that contain acids?

It's impossible to list *all* the foods that contain acids because nearly every food has some level of acidity. However, I can provide a broad overview of food types that are generally considered acidic, along with some specific examples:

Commonly Acidic Foods:

* Fruits: Citrus fruits (oranges, lemons, limes, grapefruits), berries (strawberries, raspberries, blueberries), apples, grapes, pineapple, pomegranates, etc.

* Vegetables: Tomatoes, onions, garlic, asparagus, spinach, mushrooms, etc.

* Dairy: Yogurt, buttermilk, cheese, sour cream.

* Grains: Sourdough bread.

* Beverages: Coffee, tea, soda, fruit juices.

* Vinegars: Balsamic, apple cider, rice vinegar, etc.

* Pickles: Due to fermentation and added vinegar.

* Sauerkraut: Fermented cabbage.

* Fermented Foods: Kimchi, kombucha, etc.

* Other: Wine, beer, chocolate, honey, etc.

Types of Acids in Food:

* Citric Acid: Found in citrus fruits, tomatoes, berries, etc.

* Malic Acid: Found in apples, pears, grapes, etc.

* Tartaric Acid: Found in grapes, tamarind, etc.

* Lactic Acid: Produced by fermentation in yogurt, buttermilk, sourdough bread, etc.

* Acetic Acid: Found in vinegar.

Important Note: The acidity of a food can vary based on factors like ripeness, processing, and variety.

It's important to remember that all foods have some degree of acidity. This is not necessarily bad. In fact, some acids are beneficial for digestion and overall health.

However, excessive intake of acidic foods can cause problems for some people, such as heartburn, acid reflux, or tooth erosion. If you experience any of these issues, it's important to consult with a doctor or registered dietitian to determine the cause and develop a personalized dietary plan.