I started reading a book on nutrition originating from Harvard. In the first part it talks about the US healthy eating pyramid, which is very similar to the Canada Food Guide, and points out that while there was some science behind it, ultimately corporate interests played a big role in its final form, making it inaccurate for those who seriously want to know how to eat for maximum health benefits.

The author proposes a new food pyramid. A few things I found interesting:

• Proteins are split up. Rather than all staying in one interchangable group, he puts nuts and legumes as a protein to have daily, fish and poultry as a protein to have 0-2 times a day, and red meat is put in the use sparingly category (wonder how soon the Texas cattle producers will be pursuing litigation?)
• Potatoes are also put in the use sparingly category, unless you're an extremely physically active person.
• Refined carbs, such as white flour, are also in the use sparingly category.
  
• He advises 1 alcoholic drink a day from women and 1-2 for men, as it is consistently shown that moderate alcohol is very heart-healthy (he goes into this more in a later chapter, where I certainly hopes he lists exceptions for pregnant/breastfeeding women).