There is a large number of ways that one can turn an exclusionary diet into an unhealthy diet - by what you choose to include. This doesn't make the exclusion

There is a large number of ways that one can turn an exclusionary diet into an unhealthy diet - by what you choose to include. This doesn't make the exclusion unhealthy, or the excluded food necessary. Most ULC dieters I know are LCHF, while restricting their protein intake carefully. ULC is not high protein.