Is there any soda without phenylalanine?

You're asking about sodas without phenylalanine, which is an amino acid. Here's the breakdown:

* Phenylalanine is a natural component of proteins. It's found in virtually all foods containing protein, including the ingredients used to make sodas.

* Most sodas do not list phenylalanine on their labels. This is because the amount present is generally very low and considered safe for most people.

* People with phenylketonuria (PKU) need to avoid phenylalanine. This is a rare genetic disorder that prevents the body from breaking down phenylalanine.

Therefore, it's unlikely to find a soda specifically labeled as "phenylalanine-free."

Here's what you can do:

1. Check with your doctor or a registered dietitian. They can advise you on safe beverage options if you have PKU.

2. Look for diet sodas. Diet sodas generally contain less protein and therefore less phenylalanine, but it's still essential to check labels.

3. Choose beverages that do not contain artificial sweeteners. Some artificial sweeteners, like aspartame, contain phenylalanine.

Remember, it's always best to consult with a medical professional about dietary needs and restrictions.