What can you substitute in a recipe calling for lemon juice when are allergic to citrus?

White vinegar. This is a good substitute for lemon juice in recipes that call for a small amount of acidity, such as salad dressings, marinades, and sauces.

Apple cider vinegar. This has a slightly sweeter flavor than white vinegar, so it can be a good choice for desserts or other dishes where you don't want the acidity to be too overpowering.

Cream of tartar. This is a byproduct of winemaking that has a tart, acidic flavor. It can be used in baking recipes to provide acidity and help cakes and cookies rise.

Tartaric acid. This is a white, crystalline acid that is derived from grapes. It can be used as a substitute for lemon juice in any recipe, but it is particularly good for baking because it does not impart any flavor of its own.

Citric acid. This is a white, crystalline acid that is derived from citrus fruits. It can be used as a substitute for lemon juice in any recipe, but it is important to note that it is more acidic than lemon juice, so you may need to use less of it.