Oh, for goodness sake janeainsworth. Of course I know about additions to flour (we eat wholemeal personally - don't need extras added) and fluoride etc. Wtf has that got to do with the price of fish?! And as for formula for babies - well! that is such a silly argument. They obviously have to make that as close to breast milk as possible. 
Exercise, aerobic and resistance, is the most important thing. Both to maintain strength and protect from falls (balance) We in the west get ample protein from our food. More than my granny did! (she lived to 93 btw (had 11 children))