The Claim
Dietary supplementation with carotenoids from paprika extract, marigold petal extract, or Paracoccus cell powder significantly improves the Roche Yolk Color Fan score in eggs, increasing it from baseline values of approximately 7.2–7.3 in control groups to values ranging from 9.7 to 14.4, with the greatest increases observed with paprika and Paracoccus supplementation, depending on additive type and poultry breed.
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.
Giving chickens certain natural color supplements like paprika or special bacteria powder makes their egg yolks much more yellow or orange — way more colorful than usual.
See the scientific wording
Dietary carotenoid supplementation with paprika extract, marigold petal extract, or Paracoccus cell powder causes a significant improvement in Roche Yolk Color Fan score, increasing it from approximately 7.2–7.3 in control groups to 9.7–14.4 depending on additive type and breed, with the highest scores achieved with paprika and Paracoccus.
What the research says
1 studyStudy: Effect of Dietary Carotenoid on Egg Yolk Color and Singlet Oxygen Quenching Activity of Laying Hens
The study found that adding paprika, marigold, or Paracoccus to chicken feed made egg yolks more colorful, just like the claim says, especially in certain chicken types.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.