The better something tastes, the worse it is for you.
The more delicious food is, the harder it is on your body.
the 比較級, the 比較級の構文を使って言うと、次のように言えます。
ーThe better something tastes, the worse it is for you.
「美味しければ美味しいほど、体に悪い」
ーThe more delicious food is, the harder it is on your body.
「食べ物が美味しければ美味しいほど、体に悪い」
ご参考まで!