Luke, I wouldn't think you're getting too much calcium - unless you have a problem with muscle cramps and that maybe an issue with hydration and magnesium. I wouldn't stop using milk, but I might argue that 2% or even skim might be a little kinder to your system, in terms of saturated fats consumption.
Do you need more protein while using anabolics? Oh yes.
Do you use more protein while on anabolics. Yes, thats true too.
Do you absorb more protein while on anabolics? In other words, does your protein absorption capacity improve while on anabolics? Mmmmmaybe.
Gut absorption was demonstrated in quite recently to be directly coupled to microvilli circulation and surface area. Microvilli are the fingerlike projections in the early gut that comb the intestinal flow of digested material passing thru gut for absorbable nutrients.
The key words: absorbable nutrients, microvilli surface area. How well you absorb is a function of your diet, your health, your microbial gut community health and the rate of nutrient ingestion.
If anabolics increase the vascular supply to these microvilli, then the answer is yes, presuming that you don't have gut infllammation issues that cause villi to slough off (Leaky gut syndrome) and your glutamine absorption and utilization is fully functional (a long story for another day).
So the answer is a guarded yes; you should take advantage of the benefits of anabolic use by supplying a greater protein loading each day than you would otherwise so that you build protein, rather than replace protein, breaking it down and building it up again at the same rate. You want a net gain in strutural mass from excess protein consumption. Thats anabolism.
Are you processing it more quickly? The rate of protein turnover that increases refers to the total number of cells repaired or replaced, so you spend more time and energy for anabolism than you normally do (sans chemical enhancement).
How much can you assimilate in one sitting? You work up to as much as 100 grams or more of good quality whey in one sitting. How do you get the most bang for buck? You slightly slow the release of whey so that you don't overwhelm the present net (that can adapt, so it changes over time) absorptive capacity with soluble and insoluble fibers and a little olive oil, and you add bridging proteins (moderate and slow release) to provide a steady rate of release of amino acids, some of which become energy (is converted to either glucose or the building blocks for fatty acids).
Use BCAAs for their capacity to directly signal for protein synthesis. I add them to my drink water several times each day. Quite anabolic on their own, and even better when fed with CEE.
You also use gut conditioners, probiotics and prebiotics, to help maintain and feed your gut microflora. Again, a story for another day and forum section.
Does this make sense?