I'm not claiming anything. I was merely pointing out that your equating good eating with good health is not universally true.
And I can't help noticing those little quotation marks of yours around "good" and "bad." It's as if you already realize that the definitions of good and bad, as regard health, do not easily lend themselves to objective definition.
No, I've said clearly that good nutrition is objectively a better choice than eating cake for every meal because there is a cause and effect relationship between good nutrition and good health.
And the general and yourself seem to be afraid of admitting that this is a simple, objective truth. I know you both know it to be an objective truth, and you apply this knowledge as best you can in your own lives.
Then again, I see in your conversation with others you're trying to claim A isn't always A, so forgive me if I don't necessarily spend a lot of time conversing with you on this topic.