I went thru a few varieties of pellets out there and made a list which I would feed to a sulcata and which I would not. Not a complete list, just ones I have looked at. Just an FYI if you are interested.
Marion Zoological Red Tortoise Sticks - NO
Nature Zone Tortoise Bites - NO
ZooMed Grassland Tortoise Food - Yes
RepCal Maintenance Formula - NO
ZooMed Gourmet Tortoise Food - Yes
Mazuri - Yes
Mazuri L.S. - Yes
Zilla Land Turtle and Tortoise - NO
Marion Zoological Red Tortoise Sticks - NO
Nature Zone Tortoise Bites - NO
ZooMed Grassland Tortoise Food - Yes
RepCal Maintenance Formula - NO
ZooMed Gourmet Tortoise Food - Yes
Mazuri - Yes
Mazuri L.S. - Yes
Zilla Land Turtle and Tortoise - NO