SELECT DISTINCT
				ingredient.product_ID
			FROM
				ingredient,
				recipe,
				xcart_products
				
				
			WHERE
				ingredient.recipe_ID = recipe.recipe_ID
			AND
				recipe.active = 'yes'
			AND
				ingredient.product_ID > 0
			AND
				ingredient.product_ID = xcart_products.productid
			
			
			ORDER BY
				xcart_products.product ASC

LIST:Array
(
    [0] => 721
)