from "talk to the vet" , about dogs and chocolate poisining :
Toxic Levels
The good news is that it takes, on average, a fairly large amount of theobromine 100-150 mg/kg to cause a toxic reaction. Although there are variables to consider like the individual sensitivity, animal size and chocolate concentration.
On average,
Milk chocolate contains 44 mg of theobromine per oz.
Semisweet chocolate contains 150mg/oz.
Baker's chocolate 390mg/oz.
Using a dose of 100 mg/kg as the toxic dose it comes out roughly as:
1 ounce per 1 pound of body weight for Milk chocolate
1 ounce per 3 pounds of body weight for Semisweet chocolate
1 ounce per 9 pounds of body weight for Baker's chocolate.
So, for example, 2 oz. of Baker's chocolate can cause great risk to an 15 lb. dog. Yet, 2 oz. of Milk chocolate usually will only cause digestive problems.
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now , 2 oz. of milk-chocolate is half a chocolate bar .
even i have trouble with that amount of chocolate , but i do tolerate a littlle nibble from time-to-time , probably no more than a 1/8 oz.
going by the above table , i doubt that amount of milk-chocolate would do a moderate size dog any harm .
a friend of ours has a good size dog (about 40 lbs) . she would give a piece of "snauzage" and similar dog treats when she came home from work - the dog had the run of a large garden during the day .
he became very sick and had to be put on kidney dialysis for some days . the vet said that these "dog treats" are about the worst thing one can give a dog .
we had a dog (and several cats) when i grew up . the dog lived on table scraps - dog food was unknown to us - ; the cats - being responsible for catching and killing rats in the harbour - were fed fish , beef hearts etc and they always had large saucers of milk .
they were all darn' healthy animals who survived the war years .
i don't think there was a vet anywhere near us .
hbg
source :
...TALK TO THE VET...