Most pet sugar gliders need a calcium supplement, because the foods people usually feed them (insects, fruit, nectar mixes) contain more phosphorus than calcium. Ask your exotic-pet vet which product to use and how much. Too little calcium causes weak bones; too much, or too much vitamin D, can also cause harm.
Why supplements matter
Calcium and phosphorus work together to build bone. The goal is about twice as much calcium as phosphorus overall. A diet heavy in mealworms, crickets, fruit or honey mixes pushes that ratio the wrong way. When that happens, the glider’s body takes calcium from its own bones, leading to osteodystrophy (metabolic bone disease).
Warning signs
- Weakness or tremors
- Trouble climbing, gliding or gripping
- Dragging or paralyzed back legs
- Lethargy and loss of appetite
- Fractures
Any of these is a reason to see a vet quickly. Early treatment helps, and advanced cases are hard to reverse.
Kinds of supplements
- Calcium-based multivitamin: usually sprinkled on food in the evening. It is the type commonly recommended for gliders.
- Calcium powder for insects: dust feeders before offering them. Choose a plain calcium powder with no added phosphorus.
- Liquid calcium: only if your vet prescribes it. Follow the exact directions.
Do not combine several products without asking the vet. Vitamin D3 helps absorb calcium, but excess is dangerous.
Foods that support (or work against) calcium
Rotate vegetables and keep fruit modest. Avoid chocolate and dairy, and limit high-oxalate foods such as spinach, beets, strawberries and raspberries, which bind calcium. Read Calcium Rich Foods for Sugar Gliders for more.
Mealworms and calcium
Mealworms are not a calcium source. They are high in fat and phosphorus, so keep them as an occasional treat. See Do Sugar Gliders Eat Mealworms?
Bottom Line
Pair a balanced staple with a vet-approved calcium supplement and watch your glider’s movement. For the big picture, start with A Healthy Sugar Glider Diet.
This article is general information, not veterinary advice. Call your vet for exact products and amounts.
