Well, I admit that junk food’s unhealthy. However, people have a right to make healthy or unhealthy choices.

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Is this sentence acceptable?
Can we use 'healthy choice' or 'unhealthy choice' as in the sentence?

3 answers

These sentences are perfectly acceptable. You could also say, "However, people have a right to make unhealthy choices." Either way, it means the same.
Does "to make healthy or unhealthy choices" mean "choices about healthy food or unhealthy food"?
Yes.