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Originally Posted by coash
milk firstly contains casein..the slow releasing protein. and it contains minimum dextrose, since it's mostly lactose, which is a galactose and glucose instead of just glucose, so it takes longer to break down.
trust me definitely NOT milk post workout...i'm curious where you found that info.
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Milk, especially in combination with the highly insulinogenic amino acids found in whey, will lead to a synergistic increase in insulin output. This is of great benifit to the post-workout goals of rapidly decreasing cortisol and rapidly replenishment of muscle glycogen stores.
Milk also has a huge capacity to stimulate growth factors - and this is to a much greater degree than whey alone. In fact, this is actually partially because of the casein in milk, which maintains the integrety of IGF-1 in milk, allowing it to make it to the blood un-denatured (allowing it to be absorbed in this state). Casein is also highly anti-catabolic (again, more so than whey), something also of benifit in the post-workout window!
Milk is also a natural 'electrolyte solution' (with protein and carbs as well). These vitamins and minerals are excellent for post-workout recovery - adding once again to the overall benifit of milk post-workout.
Thus - whey + milk can actually work well together in the post-workout window to aid in recovery and to give an anabolic, anti-catabolic hit all at one!
FYI: milk contains 6g of dextrose per cup