A study published in the journal Pediatrics details the case of a young baby in Spain who for eight and a half months lived on an "exclusive intake of almond beverages and almond flour." As any mother (or most humans) could guess, this diet was not healthy for the baby.

A doctor suggested the baby, then two-and-half months old, switch from a cow to almond milk formula after exhibiting skin rashes, the Washington Post reports. For a few months, everything was normal. However, at six months the baby began repeatedly rejecting vegetable and fruit purées. A month later, there were signs of deterioration. At first, he "showed less interest in interacting and was more unstable when sitting."