Final answer:
Synthetic food dyes have been linked to hyperactivity in children, as evidenced by studies such as the one conducted by McCann et al. in 2007, although research findings on this topic are still inconclusive.
Step-by-step explanation:
Since the 1970s, there have been conflicting studies about the link between synthetic food dyes and health conditions in children. The health condition that has been most frequently associated with these food dyes is hyperactivity. In a noteworthy study published by McCann et al. (2007), the relationship between food additives and hyperactive behavior in children was investigated through a randomized, double-blinded, placebo-controlled trial, suggesting a potential link.
Artificial food colorings are found in many processed foods, candies, and even pet foods. While natural food colorings, like annatto extract and caramel, come from various natural sources and are deemed safer, synthetic food dyes are often criticized for their potential health impacts on sensitive individuals, particularly children. The United States Food and Drug Administration (FDA) and the European Union have regulatory systems in place (FD&C numbers and E numbers respectively) for approving the use of these color additives in food products.
Overall, while some studies point towards artificial food colorings contributing to hyperactivity in children, findings remain inconclusive, leading to continued debate and research on this important public health issue.