Rice milk

Rice milk is the plainest of the plant drinks - rice, water, oil and usually nothing else - and it is the one to reach for when the additives are what you are avoiding. The base carries no histamine and rice is not a liberator, so what is left is whatever the brand added.

Rice milk is the plant milk with the least in it: white rice is nearly pure starch, and the drink is that starch broken down with enzymes into a thin sweetness. On this axis it is about as quiet as a drink gets. The trade is elsewhere - it is the plant milk with the least protein of any, which matters if it is replacing milk in a child's diet rather than in a coffee, and inorganic arsenic in rice is the reason paediatric guidance says not to use it as a main drink under five.