Well, sometimes it's ok ..

Check this out :

It's 90 minutes long. You're likely to not watch it although I'd really love it if you did  ... a potted summary :

Soft drinks and fruit juices are bad.  Very bad.  High fructose corn syrup is a poison.

.

Milk is good, usually, but not always.  Whole milk is good.

Life has two choices, fat or fart!

Fast food is evil.

So for cyclists, what does this matter?

Only touch sugars during the glygogen window (30 mins-2 hrs post training).

Cook your own food.  Avoid soft drinks as much as possible.  Yes, Coke is really bad for you.