What am I??

I'm Cupid's top seller, a broken hearts best friend, and the number one cause for the increase of hip sizes in US citizens. I'm like a Dove in flight; a Symphony of perfectly orchestrated flavors combined into one mouthwatering refuge. I can be a liquid or a solid, hot or cold, hard or creamy. Dentists love my consequences, while parents hate paying for them. I can be sugar full, sugar-free, or sugar-added. I'm desired by everyone, yet the scales say to avoid me.

What am I??