Duke's® Real Mayonnaise. Family Recipe Since 1917. Still 16 Ounces. Smooth & creamy. Sugar-free. Not a reduced calorie food. Rich in omega 3 ALA. Contains 650mg ALA per serving. 40% of the Daily Value of ALA (1600mg). Gluten free. The secret to great food. Try all our Duke's varieties. Duke's, mayonnaise. Duke's, mayonnaise. Duke's, tartar sauce. Find recipes at dukesmayo.com.