вот по этому http://www.daughtersoftiresias.org/bearwiki/Pursuing_unimportant_or_long-term_needs%2C_with_an_obsession_with_protein адресу куда я тебя уже посылал написано очень много интересного касательно того что тебя больше всего волнует а именно хавки.
On Man vs Wild, Bear often pursues things greatly disproportionate to their necessity, such as risking his life to eat eggshells for the calcium, when calcium deficiency takes years to develop.
One of the most common disproportionate needs Bear pursues is "protein". In nearly every episode, he seeks out protein and references how good food is by its protein content. The body is unable to store protein, and only 10% of your calories need to be from protein to not develop a deficiency (Paula Kurtzweil, “‘Daily Values’ Encourage Healthy Diet,” U.S. Food and Drug Administration, 2003). Protein can be converted into carbohydrates (the real energy source), at a cost of extra load on the kidneys (from increased urea production) and calcium loss.[1] While protein deficiency (marmasus) certainly isn't good for you, what you really need to survive for as long as possible are two critical things:
Calories. Here, fats are the clear winner, at 9 kilocalories per gram. Protein and carbohydrates each have 4 kilocalories per gram, but carbohydrates are much more readily used as energy.
Immediate energy. Here, simple carbohydrates, such as sugars, are the winner, as your body uses a simple sugar in the bloodstream (glucose) as its energy source. Proteins have to go through a long and convoluted process to be converted to carbohydrates, then to sugars, and thus to energy (straining the kidneys in the process to get rid of the nitrogen as urea).
While running out of key nutrients will eventually happen, starvation, in its purest form, is due to eating less calories than you're burning. You want as much fat as possible. Fat also contains lots of critical vitamins and minerals; a condition called "rabbit starvation" can take people in the north in the wintertime who rely only on rabbit or other lean meats for their calories.
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