My latest box of Trix cereal lacks the bright reds and blues of artificial dyes, the first of its kind at my local grocer. It turns out General Mills announcement to shift to away from artificial colours in Trix came over a decade ago:
Kelloggs removed them here some time ago, personally I still feel the bigger issue is sugar laiden carb bombs for breakfast. Natural doesnt mean better, many are still incredibly ultraprocessed to become strongly pigmented and not taste awful.
One of the great marketing successes in history is that these companies managed to convince vast swaths of people to feed candy to their kids for breakfast.