Table 1. Diet brands, varieties and characteristics for golden retrievers fed a traditional diet (TD).

Diet Brand	Diet Variety	T	M	GF	LP	LP in Top 5	No. of LP Ingredients
1	A	N	N	N	N	N	0
	B	N	N	N	N	N	0
	C	N	N	N	N	N	0
	D	N	N	N	Y	N	2
	E	N	N	N	N	N	0
	F	N	N	N	Y	N	1
	G	N	N	N	N	N	0
2	A	N	N	N	N	N	0
3	A	N	N	N	Y	N	1
	B	N	N	N	N	N	0
4	A	Y	Y	N	N	N	0
	B	Y	Y	N	N	N	0
	C	N	Y	N	N	N	0
	D	Y	N	N	N	N	0
5	A	N	Y	N	N	N	0
	B	N	Y	N	N	N	0

List of group 1 traditional diet brands, their respective varieties, and diet characteristics. For each diet variety we list (Y = yes or N = No) whether T = taurine or M = methionine was added to the diet as well if it was a GF = grain free diet and if it contained LP = legumes or potatoes.

1A = Purina Pro Plan Focus Adult Sensitive Skin and Stomach Salmon and Rice Formula Dry Dog Food

1B = Purina Pro Plan Sport Performance 30/20 Formula Dry Dog Food

1C = Purina Pro Plan Bright Mind Adult Chicken and Rice Formula Dry Dog Food

1D = Purina Pro Plan Bright Mind Adult 7+ Turkey and Rice Formula Dry Dog Food

1E = Purina Pro Plan Savor Shredded Blend Adult Chicken and Rice Formula Dry Dog Food

1F = Purina Pro Plan Focus Puppy Large Breed Chicken and Rice Formula Dry Dog Food

1G = Purina Pro Plan Focus Adult Large Breed Formula Dry Dog Food

2A = Purina One SmartBlend Healthy Weight Formula Adult Premium Dog Food (dry)

3A = Purina Pro Plan Veterinary Diets OM Overweight Management Canine Formula (dry)

3B = Purina Pro Plan Veterinary Diets EN Gastroenteric Canine Formula (dry)

4A = Royal Canin Canine Gastrointestinal Low-Fat Dry Dog Food

4B = Royal Canin Golden Retriever Adult Dry Dog Food

4C = Royal Canin Large Adult Dry Dog Food

4D = Royal Canin Golden Retriever Puppy Dry Dog Food

5A = Eukanuba Adult Large Breed Dog Food (dry)

5B = Eukanuba Performance Dog Food: Active Dog Food (dry)