User blog comment:EvanDude345rv5/Fairy Tail 334 , BOOM HEADSHOT! WTF ?/@comment-203.215.120.188-20130608115841/@comment-4829046-20130608131111

Still that's still a plot-hole. We need an explanation. Cause it has been shown before that Natsu and Gajeel love to eat, but they generally eat their respective element if its available and it seems regular food doesn't energize them. Perhaps regular food only gives nutrients to their physical body and they need elements to energize their magic. Similar to how some animals adapted to eat rocks. They don't eat them as food, but to help them digest and according to this, Dragons might have eaten platinum to create their fire if they existed. What's to say that this doesn't apply to our DS and Dragons?