Which is more nutritious?

Duck, white, @ 2.75 inches tall, 7.5 inches around tallest circumference, 6.5 inches around fattest circumference, 3/16ths inch hole. Waxy smooth surface, thinner than a goose egg and more flexible than a chicken egg.
Small Duck, Mallard or Rouen, very light pastel-green, @ 2.5 inches tall, 6.5 inches around tallest circumference, 6 inches around fattest circumference, 3/16ths inch hole, Waxy smooth surface, thinner than a goose egg and more flexible than a chicken egg
Besides being great to bake with duck eggs are sought by cancer patients. Apparently, duck eggs are alkaline (basic), chicken eggs are acidic. Cancer cells don’t thrive in a basic environment, so some cancer patients adjust their body’s environment by eating alkaline foods like duck eggs.