The color of the egg yolk (light yellow vs. dark yellow or even orange) mainly depends on the hen’s diet, not really on the healthiness of the egg itself.
Light Yellow Yolk:
The hen was probably fed a diet lower in colorful plant pigments (like wheat, barley, corn).
These eggs are still healthy, but the diet was simpler or grain-based.
Dark Yellow to Orange Yolk:
The hen ate a more colorful, nutrient-rich diet (like marigold petals, alfalfa, grasses, and corn).
These yolks usually have more carotenoids (antioxidants) like lutein and beta-carotene, which are good for your eyes, skin, and overall health.
Which is better?
Darker yolks are generally richer in nutrients like omega-3s and antioxidants.
But both yolks give you important stuff like protein, fat-soluble vitamins (A, D, E, K), and healthy fats.
In short:
Color = diet, not “freshness” or “better farm.”
Darker yolk = usually a better-nourished chicken → richer nutrition for you.