Ohhhh, MAAANNNN!!! You got me started on the subject of milk!! You may regret this.
I would advise everybody to STOP DRINKING THE STUFF. Unless, of course, you live on a farm with your own cows, who eat grass, and are not fed growth hormones or antibiotics, or interfered with in any way whatsoever. Then once you've milked the cow, you don't pasteurize or homogenize said milk.
Most of us don't have that option. We are forced to buy pasteurized and homogenized milk that's been heated and treated until it's no longer the same product. And Jessicca, it's NOT good for calves. If you feed a baby calf the pasteurized stuff, he will die of malnutrition!!!!!
Please, everybody, research this for yourself. There's a lot of info out there, from sources too prestigious to be ignored. The former head of pediatrics at Johns Hopkins was anti-dairy and linked it to many of his patients' illnesses.
Pasteurized milk is linked to allergies, sinusitus, asthma, cancer, heart disease, and - yes, really - bone loss. And that's a short list because I'm forgetting all the other horrible stuff it's linked to. Pasteurized milk is acidic, and causes the bloodstream to leach calcium from the bones to maintain its alkalinity. Pasteurized milk has no live enzymes to break down all the nutrients in it - calcium, for instance, and casein and lactose can't be broken down because the enzymes have been killed. Our bodies go into overdrive trying to break down these substances. So we get indigestion and sinusitus. We go to doctors, get antibiotics and prescriptions and it doesn't work, and not one doctor says "Why don't you try eliminating dairy?". I figured it out for myself, at long last. Dairy was making me sick.
You're right about one thing, though - skim milk is less horrible for you than whole milk. Whole milk is homogenized, which converts xanthine oxidase (a chemical in butterfat) from a harmless, inert substance into one that is connected with heart disease.
I don't believe that soy milk is a good substitute. It has a lot of calcium, sure, but it's a processed food and can irritate your sinuses. The jury's still out on soy milk. For calcium, I'd recommend nuts, green leafy foods, soy beans (like edamame) and good ol' calcium citrate supplements.
I warned you, you got me started...(and I'm probably not finished).