Healthy eating

I have read how chocolate helps you feel better and beat the winter blues and I would like to know more about it.

Calcium challenge rules and instructions.

Is oily fish healthier than white fish?

I have heard raw milk is healthier but raw meat and raw eggs are a hazard for pregnant women, do I need to give up cannibal sandwiches and home made mayo?

I would like to know is if canned beans are as healthy as the dried beans.

One of my friends insists beans make you fat but bread crust is less fattening than the soft crumbly inside, and to lose weight fast it is better to avoid potatoes, one of my favourite foods, and be on a fruit only diet, should I believe all that?

Fruits lose nutrients when frozen or dried, true or false?

Rules and instructions for the veggie challenge.