Created from a Family Recipe Since 1917. Duke's® Sandwich Relish. Still 16 ounces. Rich in omega 3. ALA. Contains 370mg ALA per serving. 23% of the Daily Value of ALA (1600mg). The secret to great food. Try all our Duke's varieties: Duke's, real mayonnaise, smooth & creamy. Duke's, tartar sauce. Duke's, mayonnaise light. Find recipes at dukesmayo.com. www.dukesmayo.com.