In our experiences, buying fresh eggs is always one of the best benefits of shopping at farmers’ markets. The slow food-centric Eat Local Challenge blog just wrote about what you need to know about buying eggs. Basically, it all comes down to finding a place whose eggs have consistently good yolks and sticking to it. Why yolks?
A good clue to the nutritional content of an egg is the color of the yolk. The deep orange color often seen in a naturally produced egg yolk is related to the chickens’ diet. If the diet includes yellow and orange plant pigments called xanthophylls, the yolk will be deep yellow-orange. If the diet is low in these pigments, the yolk can be almost colorless.The yolk holds all of the egg’s vitamin content including six B vitamins, as well as vitamins A, D, and E. The yolk also contains the antioxidants lutein and zeaxanthin and trace amounts of carotene, phosphorus, iron, and magnesium.