I knowingly took up this topic for today's discussion. This is the most asked question by pet owners and if you follow Dr. Google there are many paradoxical statements on giving milk to dogs. Additionally, there are many dog owners out there who feed their dogs at least a cup of milk every day. This is despite objection by their vets. Therefore, I want to answer this question from my experience and knowledge.
Milk to dogs!!
Milk as such is not harmful to dogs. Afterall, milk is so much full of nutrients. It is the way milk is produced is responsible for all ill effects on dogs. If your dog is not lactose intolerant, milk is very well digested.
The modern-day system of milk production
Milk nowadays is produced from cows kept in cramped places. These cows have injected hormones and are often in negative energy balance. These hormones are harmful to our dogs. one such hormone is oxytocin - which helps in let down of milk.
Another hormone is adrenalin which is released during milking.
Oxytocin causes smooth muscle contraction=> pain=> adrenalin release.
Milk preservation and packing
In modern day America we get ultrapasteurized milk. This milk contains many antibiotics and preservatives.
Propylene glycol is added to cow feed and consequently, this comes in milk. Propylene glycol is poisonous to dogs.
It is these additives that cause problems in dogs. Milk causes flatulence, diarrhea, and vomiting. Interestingly, I know some vets(my friends) who put blame on milk for causing cancer or skin diseases!! Perhaps, their opinion is so much biased.
Which milk to give
If you get milk directly from cows, unpasteurized and without any additives, There is no reason of depriving our dogs from such milk. I understand this is not possible in our country unless you are a cowboy, but things are changing. People are now demanding free-range chicken, organic vegetables, likewise we may someday get unpasteurized milk. The demand for milk is bound to rise, as American Heart Association has now given clean cheat to milk and advising getting 2 to 3 servings per day, and why not go for unadulterated natural milk!!
Finally, Coming back to dogs, give milk to dogs but that should be mixed with water in equal quantity. If you see some adverse reaction, stop immediately and never ever give milk to the dog.