In the last decade, especially with studies on casein, and, many people developing sensitivity to Lactose, a sugar found within milk, or, problems digesting milk proteins; milk has developed a bad reputation in United States.
I get asked constantly in my Herb class, if Almond milk, or, soymilk is okay to substitute for dairy when using as an anupana for delivery of herb. The answer is NO. It is not the Ayurvedic way.
When I am talking about using milk as an anupana (a vehicle that increases the efficacy of the herb, and, delivers it deeper into the dhatus, increases kapha, decreases vata and pitta) then only actual dairy will do. This usually means cows milk.
First the amount of milk we are using for delivery of herb is 24 ml, or less than an oz. Perhaps 2 oz. If someone cannot digest dairy, then we suggest ghee instead. (All milk solids which include casein and lactose have been removed!)