If I was forced to choose, I would pick Bio-Gold over Gold.
But still, both have what I personally consider a high ash content, and the amino acid profile is based entirely on a generic fish meal. This is where *variety* of raw ingredients comes into play.
Bio-Gold's main ingredients: Fish meal, wheat flour, brewer's dried yeast, gluten meal, spirulina, fish oil.
NLS main ingredients: Antarctic Krill Meal, Herring Meal, Wheat Flour, Squid Meal, Algae Meal, Soybean Isolate, Beta Carotene, Spirulina, Garlic, Vegetable and Fruit Extract.
For the "wide variety" camp, consider this ..... New Life also contains Algae Meal, that consists of Seaweed, Kelp, Haematococcus pluvialis (a micro algae), and "several" other micro-algaes. A premium grade of natural Spirulina, as well as a fruit & vegetable extract that consists of Spinach, Red & Green Cabbage, Peas, Broccoli, Red Pepper, Zucchini, Tomato, Kiwi, Apricot, Pear, Mango, Apple, Papaya, and Peach.
Their main source of amino acids (protein) is derived from Antarctic Krill, Herring, and Squid. Not just some generic "fish meal", and a single source of plant matter.
And again, this is without even beginning to compare micronutrient levels, such as vitamins & trace minerals.
But still, both have what I personally consider a high ash content, and the amino acid profile is based entirely on a generic fish meal. This is where *variety* of raw ingredients comes into play.
Bio-Gold's main ingredients: Fish meal, wheat flour, brewer's dried yeast, gluten meal, spirulina, fish oil.
NLS main ingredients: Antarctic Krill Meal, Herring Meal, Wheat Flour, Squid Meal, Algae Meal, Soybean Isolate, Beta Carotene, Spirulina, Garlic, Vegetable and Fruit Extract.
For the "wide variety" camp, consider this ..... New Life also contains Algae Meal, that consists of Seaweed, Kelp, Haematococcus pluvialis (a micro algae), and "several" other micro-algaes. A premium grade of natural Spirulina, as well as a fruit & vegetable extract that consists of Spinach, Red & Green Cabbage, Peas, Broccoli, Red Pepper, Zucchini, Tomato, Kiwi, Apricot, Pear, Mango, Apple, Papaya, and Peach.
Their main source of amino acids (protein) is derived from Antarctic Krill, Herring, and Squid. Not just some generic "fish meal", and a single source of plant matter.
And again, this is without even beginning to compare micronutrient levels, such as vitamins & trace minerals.