Milk substitutes clearly state on the packaging that it is not a substitute for formula.

The title is misleading. It's not just almond milk. Any milk would do the same thing. Cow's milk contains 4 - 6% of an adults Vitamin C needs (some labels even say 0%). That means an 8 oz glass only has 5.4 mg. For a baby under 6 months they would need to drink 7.5 bottles of milk to get the Vit C needed. For a baby over 6 months it would be 9.3 bottles a day. Of course, they would be getting food as well. Point being made is that formula has the vitamins supplemented. If not using breast...