Biochemists have elucidated the structure of an enzyme that supplies carotenoid, investigators report. The lack of vitamin A in food is a major cause of health problems worldwide and can lead to blindness and even death. This is especially a problem in threshold or third-world countries, where children are likely to suffer from a lack of vitamin A or its precursor beta-carotene due to malnourishment.
Toddlers are considered children between the ages of two and three years old. During this stage in their lives, they are growing in more than just height and weight. Their brains are going through a major development now that they can walk, talk, and figure things out for themselves.