Controlled studies have shown that a single animal-based meal can impair blood flow by 27 percent and can increase measures of inflammation by 70 percent while a single plant-based meal has the opposite effect; increasing blood flow and decreasing inflammation.
Meat, dairy, fish, and egg farming use 83 percent of the world's farmland yet provide only 18 percent of the world's calories. Animals consume, on average, six times more protein than they produce Further, 27 percent of the humanity's fresh water supply goes to the production of animal feed.
The world's farm animals produce 50 percent more pollution than its humans. The livestock sector is responsible for 15 percent of global manmade emissions; about the same as all the emissions from all the forms of humanity's transportation (planes, trains, cars, vans, ships, etc.)
Articles
- Human Ancestors Were Nearly All Vegetarians, scientificamerican.com