The present invention relates to omega-3 fatty acid enrichment, and n-6 to n-3 fatty acid ratio improvement, of poultry products using animal feed supplemented with defatted microalgae, and treatment methods involving such poultry products. One aspect of the present invention relates to a method of producing poultry eggs with elevated amounts of n-3 fatty acids. This method involves feeding poultry an amount of defatted microalgae under conditions effective for the poultry to produce an egg comprising about 300 mg to about 550 mg of n-3 fatty acids.