But a closer look at almond milk cartons reveals that many big-company almond milks contain only have a small handful of almond-derived liquid. Almonds are good for protein, fibre (when the skin is left on), healthy fats, vitamin A, manganese and magnesium. But you need enough of them to make a difference. A standard serving of whole nuts in the US, the home of almonds, is regarded as 23 nuts. No-one is going to get anything like that in a glass of almond milk.