This is all a bit silly. Here's an advertisement for a bunch of full meal replacements for people of normal health or crappier: http://www.abbottnutrition.ca/

This is all a bit silly. Here's an advertisement for a bunch of full meal replacements for people of normal health or crappier: http://www.abbottnutrition.ca/static/cms_workspace/en_CA/content/document/DIR134A08.pdf http://www.abbottnutrition.ca/static/cms_workspace/en_CA/con... As you can see, they've been on the market for decades, and people have been using them as sole-source nutrition for decades.