Bearded Dragon Vitamins & Calcium

Why do dragons need calcium and vitamins?

Calcium supports bones, muscles, and nerves. Many feeder insects contain little calcium relative to phosphorus, so a varied diet, gut-loading, and appropriate supplementation matter. UVB allows vitamin D3 production in the skin; D3 helps the body use calcium. Suitable temperatures are also essential.^{1, 2}

Inadequate calcium, UVB, or heat can contribute to nutritional metabolic bone disease (MBD). Weakness, tremors, a soft or swollen jaw, difficulty walking, or fractures require a reptile veterinarian. Supplements are prevention tools, not a home treatment for suspected MBD.²

Fat-soluble and water-soluble vitamins

These are vitamin classifications, not a reason to give human supplements. Calcium is a mineral, not a vitamin. Use a reptile product at its labelled dose; avoid adding separate vitamin A or high-dose D3 without veterinary guidance.^{3, 4}

Our weekly starting schedule

For a healthy dragon eating an appropriate diet under effective UVB, we recommend a simple routine with separate calcium and multivitamin products. Lightly dust the portion that will actually be eaten. Needs change with age, growth, breeding, diet, UVB exposure, and disease; confirm the exact products with your reptile veterinarian.^{1, 5}

This is our practical six-day calcium / one-day vitamin outline, not a dosing trial or a universal prescription. Do not create extra insect meals just to give supplements. If your dragon skips a meal, do not “catch up” with a large dose. For all-in-one powders, follow the manufacturer’s programme instead of adding a separate weekly vitamin automatically.

Brands we recommend

We recommend Repashy, Rep-Cal, and Arcadia. Choose a matched programme and check the precise formula—products within one brand are not interchangeable.

• Repashy SuperVite: vitamin powder containing preformed A and beta carotene. Calcium Plus combines calcium and vitamins and is labelled for every insect feeding; do not automatically layer another multivitamin over it.^{6, 9}
• Rep-Cal Herptivite and calcium supplements: Herptivite uses beta carotene rather than preformed vitamin A. The manufacturer gives its own mixing directions. Discuss the complete vitamin-A and D3 plan with your veterinarian.⁷
• Arcadia ReVitaliseD3 and the EarthPro feeding programme: follow the manufacturer’s cycle with the intended companion products rather than mixing several unrelated schedules.^{8, 10}

Make the routine work

• Gut-load feeders with an appropriate feeder diet, and offer varied, suitable greens.
• Use a light, even coating rather than burying food in powder. Feed dusted insects promptly.
• Keep containers closed, follow storage and expiry instructions, and record the supplement names and dates.
• Review the plan if you change UVB, switch powders, use fortified prepared diets, or breed your dragon.

Loss of appetite, poor growth, weakness, or eye and skin changes can have many causes. Bring the labels and your lighting details to the veterinary appointment; do not respond by increasing every supplement.^{1, 2, 4}

See our Lighting & UVB guide for how exposure supports calcium metabolism.