To be able to pick up these items you must be switched to Sanji.
Once you collect 25 Sanji items, you will unlock the "Cook's Nose" achievement / trophy.
Sanji will sometimes say, "Well, well. Look at this." If you change characters to Sanji then, you can find ingredients for cooking.
Dogol Dragon Frozen Meat x 5 (Sanji)
Rock Bear Arm x 3 (Sanji)
Rock Bear Arm x 3 (Sanji)
Shay-King Dragon Maracas x 3 (Sanji)
Shay-King Dragon Maracas x 3 (Sanji)
Shay-King Dragon Maracas x 5 (Sanji)
Shay-King Dragon Maracas x 5 (Sanji)
Shogun Jishi Neck x 3 (Sanji)
Walrus Ice Shell x 3 (Sanji)
Walrus Ice Shell x 3 (Sanji)
Bo Bo Bird Breast x 3 (Sanji)
Bo Bo Bird Breast x 3 (Sanji)
Bo Bo Bird Breast x 5 (Sanji)
Bo Bo Bird Egg x 3 (Sanji)
Electric Dragon Meat x 3 (Sanji)
Electric Dragon Meat x 3 (Sanji)
Gator Watermelon x 3 (Sanji)
Gator Watermelon x 3 (Sanji)
Kung-Fu Dugong Milk x 2 (Sanji)
Kung-Fu Dugong Milk x 2 (Sanji)
Kung-Fu Dugong Milk x 3 (Sanji)
Sandora Dragon Meat x 4 (Sanji)
Sandora Dragon Meat x 5 (Sanji)
Sazae Kancho Ogre Liver x 3 (Sanji)
Scorpion Leg x 4 (Sanji)
Scorpion Leg x 5 (Sanji)
Sea Pig Meat x 2 (Sanji)
Sea Pig Meat x 3 (Sanji)
Shock Kabuto Meat x 3 (Sanji)
Shock Kabuto Meat x 3 (Sanji)
Volcano Dragon Tail x 3 (Sanji)
Volcano Dragon Tail x 3 (Sanji)
Bo Bo Bird Breast x 2 (Sanji)
Electric Dragon Meat x 2 (Sanji)
Sazae Kancho Liver (Sanji)
Sazae Kancho Ogre Liver (Sanji)
Sazae Kancho Ogre Liver (Sanji)
Shock Kabuto Meat (Sanji)
Shock Kabuto Meat (Sanji)
Volcano Dragon Tail (Sanji)
Volcano Dragon Tail x 2 (Sanji)
Dress-Shrimp x 5 (Sanji)
Dress-Shrimp x 5 (Sanji)
Fairy Pumpkin x 5 (Sanji)
Fairy Pumpkin x 5 (Sanji)
Gator Melon x 5 (Sanji)
Gator Strawberry x 5 (Sanji)
Gator Watermelon x 5 (Sanji)
Rose Squid Ink x 5 (Sanji)
Rose Squid Ink x 5 (Sanji)
Rose Squid Meat x 5 (Sanji)
Rose Squid Meat x 5 (Sanji)
Smoke Scale x 5 (Sanji)
Electric Dragon Meat x 2 (Sanji)
Shock Kabuto Meat x 2 (Sanji)
Volcano Dragon Tail x 2 (Sanji)