Bok Choy

Russian Tortoise

Agrionemys horsfieldii

Goitrogenic Brassica family vegetable. Not a suitable staple green.

Leopard Tortoise

Stigmochelys pardalis

[confidence: high] [source: Reptifiles leopard tortoise care; Tortoise Trust goitrogen article] Goitrogenic brassica; particularly concerning for leopard tortoises which have brassica sensitivity; avoid.

Eastern Box Turtle

Terrapene carolina

[confidence: high] [source: Tortoise Trust goitrogen article; exotic reptile vet review] Goitrogenic brassica that can interfere with thyroid function if fed frequently; acceptable in occasional rotation.

Greek Tortoise

Testudo graeca

[confidence: high] [source: The Tortoise Table; Tortoise Trust goitrogen article] Goitrogenic brassica that can interfere with thyroid function; Mediterranean tortoises have limited brassica tolerance.

Hermann's Tortoise

Testudo hermanni

[confidence: high] [source: The Tortoise Table; Tortoise Trust goitrogen article] Goitrogenic brassica; can interfere with thyroid function; avoid for Mediterranean tortoises.

Sulcata Tortoise

Centrochelys sulcata

[confidence: high] [source: Reptifiles sulcata tortoise care; Tortoise Trust goitrogen article] Goitrogenic brassica; avoid for Sulcata tortoises whose diet should be primarily grasses.