Yes. Citrus fruits contain citric acid. The notion of them having an alkaline effect on the body is nonsense.
Acidic Fruit
Citrus fruits are acidic (oranges, lemons, etc.)
lemon
All citrus fruit is acidic, not basic.
Most citrus fruit such as oranges and lemons are fairly acidic.
No they are acid they get their name citrus from the citric acid that they contain.
Amanatsu is a citrus fruit that is grown in Japan.
The acid in the fruit
No it does not, you need something acidic like citrus fruit to stop it from setting.
Citrus fruits are acidic in nature.
No, passion fruit is not a citrus fruit.
Lime is a type of citrus fruit and as such, contains citric acid.