The Claim
Paprika and marigold extract are added to chicken feed to enhance egg yolk pigmentation, resulting in a more orange-colored yolk that consumers perceive as indicative of higher nutritional value, irrespective of the actual dietary quality of the hen's feed.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Farmers add paprika and marigold to chicken food to make egg yolks look more orange because people think those eggs are healthier—even if they're not.
See the scientific wording
Paprika and marigold extract are added to chicken feed specifically to enhance yolk pigmentation, creating a visually appealing orange color that consumers associate with higher nutritional value, regardless of actual diet quality.
What the research says
3 studiesStudy: Effect of Dietary Carotenoid on Egg Yolk Color and Singlet Oxygen Quenching Activity of Laying Hens
The study shows that adding paprika and marigold to chicken feed makes egg yolks more orange, which is exactly what the claim says happens.
The study shows that adding paprika to chicken feed makes egg yolks more orange, which is exactly why farmers use it—even if the eggs aren’t actually more nutritious.
The study shows that adding paprika and marigold to bird feed makes egg yolks more orange, which people find more appealing, just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.