One of the most important vitamins you could ever give a frog is Calcium. Calcium prevents many diseases, one of the most common is Metabolic Bone Disease (MBD). MBD is a very commonly fatal ilness found in frogs that lack proper nutrition that causes frogs' bones to become very weak. Weak bones can lead to broken bones, and broken bones can lead to crippling, even death.
However, it's important to understand that a lack of calcium is not the only reason for MBD in frogs. MBD can also be caused by a disorder of calcium metabolism. Some frogs cannot properly digest calcium, resulting in a disorder of the calcium. Still, all frogs are unable to digest calcium without a proper dosing of vitamin D3.
Frogs don't absorb vitamin D3 that well, either. MBD can also be caused by a lack of vitamin D3. Vitamin D3 and calcium are needed together in order to be properly digested in your frog.
I know this article is supposed to be about vitamins and nutrients, but while we're on the subject of MBD, here's a list of symptoms in young frogs:
- Swollen, flimsy or extremely small legs.
- Lethargy, lack of movement, difficulty hunting, jumping, etc.
- Constipation
- Bumps or ridges along the vertebral column or arched spine
- Weakness
- Recession of the lower jaw
- Twitching of the legs, fingers and toes while active or even while at rest.
- Skinniness
- Paralysis
- Twitching or shakiness at being held
- Extreme malnutrition
- Bone fractures
- Vitamin B12
- Vitamin B6
- Folic Acid
- Beta Carotene (vitamin A)
- Niacin
- Biotin
- Ascorbic Acid
- d-Pantothenic Acid
- Thiamine
- Riboflavin

This probably seems like an overwhelming list. Yet it's really simple. There are several ways to achieve all these vitamins and nutrients in one simple meal. I have found that by using the product: Zilla (brand) Food Spray Vitamin Supplement with Beta Carotene my frog is easily able to get a full dose of vitamins every day! You can find it at http://www.petco.com/ or probably at any store that sells crickets and amphibians.
This spray is easier than most powder supplements, because with a powder supplement you have to shake it onto the insects and then hope it doesn't shake back off again. With the vitamin spray, it only has to dry 15 seconds and is ready to give to your frog.
Preventing MBD:Use a vitamin supplement on every one of your frog's meals. Many resources suggest using supplements on every 3-4 meals, but that's not giving your frog enough nutrition.