"Essentially, [by cooking our food, we] externalize much of the work & the energy need for digestion.[.. Food] becomes detoxified & it becomes easier to chew--that's a huge deal.[..] It also gives us access to food other animals can't eat, like tubers--most of which are toxic, unless [we] cook them.[..]" -MP
You can get high quality protein from organic, free-range animal sources and fish. If you are vegetarian consider supplementing your diet with a high potency super food powder such as chlorella or E3 Live (an amazing protein rich superfood). I can also highly recommend the Sun Warrior protein powder (chocolate is my favourite).
The most common symptoms of toxic buildup within the body are mental dullness, aching-stiff joints, gas and bloat, high acidity, digestive problems with the stomach and colon, acid reflux and fatigue. www.hungryforchange.tv