I have noticed that one of the turn offs in DayZ SA how minimal info is given to the player. I feel I should cover how to keep yourself healthy.
The Six Bodily Storages
I know in DayZ mod there are 4 Storages: Blood, Energy, Water, and Shock.
Two other additional Storages where added in DayZ SA, Health and Stomach
Water
Water is one of your primary concerns, go too long with out a water pump or a sip from a canteen and you start to die of dehydration.
Dehydration causes you to lose 5 health and 5 blood per second!
4000 water is max and you to get thirsty at 2000 and you start dying at 0
You spawn with 1800 water
You lose 1 water every 7.5 seconds idle and 3 when moving crawling or running!
Energy
Energy is your second concern, you must eat!
Dying of Hunger will cause you to lose 1 health and 2.5 blood per second
20000 energy is max you get hungry at 600 and you start dying at 100
You spawn with 1000 energy
You lose 1 energy every 15 seconds idle and 4 when moving crawling or running!
Stomach
Stomach is how much you can eat at a time without vomiting.
Vomiting make you lose 1000 energy 600 water and 500 stomach!
4000 is max and you will vomit at 3900 and you will see vomit warnings at 2500 and 3500.
You spawn with 1000
You lose 1 stomach per second constantly.
Blood
Blood gives you colors! Also blood has been nerfed in SA.
You will faint at 500 blood
5000 is max
You spawn with 5000
You CAN have 0 blood but you will still be unconscious and in order to get out you will need to be IVed. Losing blood makes your screen more monochrome.
You can restore blood fully with Saline IVs, 1000 with blood IVs and you can restore blood naturally.
You lose Blood by: bleeding, getting hit, falling, malnutrition, and sicknesses
Blood restores naturally:
Slowly at 3500 energy and 3000 water, netting 1 blood per second
Quickly at 5000 energy and 2500 water, netting 3 blood per second
Shock
Don't get hit!
Having a Shock value over your Blood value will knock you out!
5000 is max
You spawn with 0
You gain shock by getting hit and falling.
you lose shock at 30 per sec.
Shock unconsciousness is cured by having 0 shock, also epipens and defibrillators.
Health
Your life line.
You die at 0 health.
5000 is max
You spawn with 5000
With post-processing on you screen should blur each time you lose health.
You lose Health by getting hit, falling, and chemical poisoning.
The only way to regenerate health is to achieve Quick blood regeneration AND full blood
Food
http://dayz.gamepedia.com/Food#Food
This should have info of all things eatable in DayZ Standalone
My Opinion
You should run to a water pump ASAP when spawning and spam it until your well fed.
Eat everything you can find that is not rotten or disinfectant, You store 20000 energy at max.
The only food worth bring with you is Canteens (Refillable, Water 1000, Stomach 500 ) and Rice (Energy 3740 Water -1000 Stomach 1000)
Videos relating to this subject.
Credit
Merino DayZ I got most of my info from his videos, as you can see.
Dean Hall for creating the mod that lead to the SA.