The Claim
Supplementing laying hen diets with 0.5% or 1.0% DHA-rich microalgae increases yolk carotenoid content from 27.6 μg/g to 30.5–31.9 μg/g and enhances yolk color intensity, as measured by an increase in Roche Yolk Color Score from 7.5 to 8.6–9.4, without surpassing consumer acceptability thresholds.
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.
Adding a type of algae to chicken feed makes egg yolks more orange-red, which people still find tasty and acceptable.
See the scientific wording
Supplementing laying hen diets with 0.5% or 1.0% DHA-rich microalgae increases yolk carotenoid content from 27.6 μg/g to 30.5–31.9 μg/g, resulting in a more intense red-orange yolk color (Roche score 7.5 to 8.6–9.4) without exceeding consumer acceptability thresholds.
What the research says
1 studyThe study shows that feeding hens DHA-rich algae makes egg yolks more orange-red, just like the claim says, and people still find them acceptable.
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.