Red snapper is lean source of protein and it contains omega-3 fatty acids, vitamin A as well as selenium which are beneficial for couples who are trying to conceive.
Omega-3 fatty acids are good for the brain development of the fetus. Selenium is an antioxidant that can help to boost immune system.
However, due to pollution, there is mercury found in the red snapper. Presence of mercury in the pregnant women has been found to be related to some birth defects and this heavy metal usuaully will stay in the body for quite long.