When freezing green vegetables, especially the leafy greens, the thiamine (vitamin B1) will leach out. When pre-frozen greens are fed over a long period of time and no provision is made for adding the thiamine back into the diet, a deficiency, hypothiaminosis, will occur. This causes tremors and twitches. Unfortunately, MBD also causes twitching and tremors of the toes and muscles of the legs. Many vets are not aware of that a thiamine loss is linked to green vegetables and will assume that the Beardie is suffering from a calcium deficiency. The only problem is that no amount of additional calcium is going to make twitches and tremors related to hypothiaminosis go away...only adding thiamine to the diet will. The best way to replace the lost B1 is by buying a vitamin B1 supplement, which is available in most health food stores, drug stores, and vitamin stores.

I have read that some people add brewer's yeast to replace thiamine. However, a thiamine supplement is healthier than the formerly recommended brewer's yeast for your Beardie, as the yeast is very high in phosphorous (1:21 calcium to phosphorus ratio). If you buy B1 in tablet form, you can use a pill crusher to crush it and store the left-over powder as you only need a small pinch of the vitamin for a serving of salad. If you buy the B1 in a powder-filled capsule, you can dump some capsules out into a small container and take your pinches from there. Follow the directions on the bottle of B1 to make sure you store it properly to maximize its shelf-life.