How can I fix a soup that has too much salt in it?

To fix a soup that has too much salt, you can try adding more liquid like water or unsalted broth, or balance the saltiness with ingredients like potatoes, rice, or vegetables. You can also try adding a bit of acid like lemon juice or vinegar to help counteract the saltiness. Taste as you go and adjust accordingly until the salt level is balanced to your liking.