Kid influencers with popular YouTube channels frequently promote junk food and poor nutrition in their videos.
Researchers studied 2019's five most popular youtube kid influencers.
Ages ranged from 3 to 14 years.
Nearly half of the videos promoted food and drinks.
More than 90 percent featured junk food, candy and soda.
These videos were viewed more than a billion times.
What does this mean for parents and health agencies?