I believe the body craves for what it needs. If you are in need of water, you get thirsty. I the body requires salt, you loath for something salty. If you are in need for vitamins … well you catch my drift.
The phrase “An apple a day keeps the doctor away” implies that you stay healthy when eating apples. Subsequently, your body will crave for apples if needed.
3 friends and me were on a sailing trip the last 8 days. We bought 12 apples. Plenty to stay healthy. Today, we returned with exactly the 12 apples we bought. Hmm …?!
The only logical conclusion at hand: Sailing keeps you healthy, who needs apples!