Right foods alone? Have to disagree. Our soil is highly depleted in this  
country from over farming and little replenishing takes place. If it's not in  
the soil-it's not in the food. Potassium you can count on, it's put back in  to 
ensure a good yield for farmers. Copper-not generally a concern. If you think  
you can count on copper being in your body with even the food raised  in 
copper-rich soil and take several grams of vitamin C a day- you will develop  
copper deficiency. This is serious. I'm not talking about dying at 90 either.  
Linus Pauling was quoted as saying something to the effect that all or most  
degenerative disease could be traced back to mineral deficiency. I'm sure C was 
 
not the only thing he gave his body. I'd certainly assume a large quantity of  
other vitamins and minerals were on his schedule too. I'm talking about dying 
at  sixty with warning signals of varicose veins and premature wrinkling and 
loss of  hair pigment. I'm not in a who's right who's wrong battle. I'm just 
stating what  my own research has lead me to believe. All smartazzity aside- 
you 
should look  this up, you may be getting yourself into trouble here.