Collard Greens

Russian Tortoise

Agrionemys horsfieldii

[confidence: high] [source: The Tortoise Table; Tortoise Trust goitrogen article for Central Asian tortoises] Goitrogenic brassica green; can be offered occasionally in rotation but should not be a daily staple for Russian tortoises.

Hermann's Tortoise

Testudo hermanni

Goitrogenic Brassica green. Excellent Ca:P ratio but limit to avoid thyroid disruption.

Greek Tortoise

Testudo graeca

Goitrogenic Brassica green. Excellent Ca:P ratio but limit to avoid thyroid disruption.

Sulcata Tortoise

Centrochelys sulcata

Goitrogenic when fed in excess. Very high calcium makes it useful in small amounts.

Leopard Tortoise

Stigmochelys pardalis

Goitrogenic when fed in excess. Very high calcium makes it useful in small amounts.

Red-footed Tortoise

Chelonoidis carbonarius

Excellent calcium-rich staple green. Core of the daily salad.

Eastern Box Turtle

Terrapene carolina

Good calcium-rich green for adults. Juveniles eat less plant matter.

Red-eared Slider

Trachemys scripta elegans

High calcium, good for shell health. Float pieces in water.

Yellow-bellied Slider

Trachemys scripta scripta

High calcium, good for shell health. Float pieces in water.

Painted Turtle

Chrysemys picta

High calcium, good for shell health. Float pieces in water.