User blog comment:Monkey.D.Me/PUNK HAZARD - FAQ/@comment-4597065-20120215142036/@comment-3075024-20120215144624

At one point One Piece had crossover with Toriko. SO my guess is that if Oda liked Toriko and its ideas .. then he might use the idea of boosting your strength or ability using food. Sanji's new learned 99 Kama-recipes can be part of that idea. SHs can gain so much strength if they just eat the right food suitable for their body ..

Luffy - Meat but with high source of Vitamin B12 that helps you produce blood faster and it may help Luffy maintain his Gear Second longer and stronger.

Zoro- Alcohol but rather one that helps him making his body relax and at same time increases his endurance against taking hits.

Franky- Cola but homemade. Organic cola is much better then mass-manufactured. Or even stronger drink then Calo that provides even more power. Ginger Soda? XDXD

Ussop- All about the eyes. Carrot, tomato, grapes, cucumber or anything that helps you make your eyes shark and like Hawk-eye.

Chopper- Sugar-rush .. .. nuff said.

Brook- Milk ...... Calcium .... Bones ..... nuff said.

Nami and Robin - ...................................................................................*nosebleed* .....................

Or any other food as long as they can help the crew boost their strength. THis is just a fan-made theory but it still has high possibility.