Hi Kimberlea,
It's great that your nephew eats a balanced diet!
Children often eat cooked and processed foods that have a lack of enzymes. This can create stress to the digestion system. Even if there are no digestive issues, enzyme supplements for children can assist in digestion and assimilation of the important nutrients children eat. This promotes growth and repair while supporting a healthy digestive system.
Unlike certain vitamins and minerals, there is threshold to the amount of enzymes that can be taken.
There are enzyme supplements that are not in capsules, such as Kids Digest by Enzymedica which comes in a powder form that is mixed with juice or Digest Sprinkles which can be "sprinkled" onto food. My six year old prefers the Sprinkles since he can sprinkle it on his food, all by himself.
Maday Labrador