Bearded Dragon Supplement Schedule by Age

Dust feeder insects with calcium at most feedings. Babies and juveniles, which eat insects daily, get calcium nearly every day, while adults that eat insects only two to three times a week get calcium on those days plus a light dusting of the salad once or twice weekly. Calcium is the single most important supplement for preventing metabolic bone disease, so a consistent schedule matters at every age.

Choose calcium without D3 if you have a strong, current T5 HO 10.0 UVB bulb, since the dragon makes its own D3 from UVB and too much supplemental D3 can be harmful. Use calcium with D3 only if your UVB is weak, expired, or absent, and even then use it sparingly, a couple of times a week. Matching your calcium type to your UVB setup avoids both deficiency and overdose.

Give a reptile multivitamin about once a week at every age. The multivitamin supplies vitamin A, trace minerals, and other nutrients that may be missing from a captive diet. Dust a feeding with it once weekly, separate from your regular calcium dusting. Avoid daily multivitamin use, because fat-soluble vitamins like A can build up to harmful levels over time.

Yes. Too much vitamin D3 can cause dangerous calcium buildup, and excess vitamin A from heavy multivitamin use can cause toxicity with symptoms like swelling and skin problems. The safe approach is plain calcium most days when UVB is strong, a multivitamin only once a week, and D3 calcium only when UVB is inadequate. More is not better with reptile supplements.

Place the feeder insects in a small bag or deli cup, add a light pinch of calcium powder, and gently shake to lightly coat them, then feed promptly before the powder falls off. Aim for a light dusting rather than a heavy cake of powder. Gut loading the insects first and then dusting them gives your dragon the most complete, calcium-rich meal.

Yes. Even on a plant-heavy diet, adults need calcium to maintain bone strength, and females need it for egg production whether or not they are bred. Dust insects on the two or three weekly insect days, lightly dust the salad once or twice a week, and continue the weekly multivitamin. Supplements remain important for life, just at a lower frequency than during the growth stages.

Captive diets rarely match the variety wild dragons eat, and feeder insects in particular are low in calcium relative to phosphorus. Dusting corrects that imbalance so the dragon gets enough calcium to build and maintain bone. UVB lets the body use that calcium by producing D3. Diet, supplements, and UVB work together, and removing any one of them raises the risk of metabolic bone disease.