Do I still need to take D3 after taking AD drops

Whether to take AD drops and vitamin D3 simultaneously depends on age and nutritional status. Infants and young children usually only need AD drops to meet their needs, while adults or special populations may require additional supplementation of D3. The supplementation of vitamin A and D needs to consider factors such as dietary intake, sunshine duration, and individual absorption differences. AD drops are a combination of vitamin A and D, commonly used to prevent rickets and vitamin A deficiency in infants and young children. The vitamin D component is mostly in the form of D3, which can meet daily needs at regular doses. For infants who are breastfed or have sufficient intake of formula milk, the vitamin D content in AD drops is usually sufficient and does not require additional supplementation. If adults are at risk of insufficient sunlight or osteoporosis, doctors may recommend adding pure D3 preparations on top of AD drops.

Some special circumstances require separate supplementation. Premature and low birth weight infants have a higher demand for vitamin D and may need to adjust their dosage under the guidance of a doctor. Patients with chronic diarrhea and liver and gallbladder diseases may affect the absorption of fat soluble vitamins, and it is necessary to monitor blood calcium and vitamin D levels to determine the supplementation plan. People who take antiepileptic drugs or glucocorticoids for a long time have accelerated vitamin D metabolism and often require higher doses of supplementation.

Animal liver, deep-sea fish, egg yolks, and other foods in daily diet contain vitamin A, while mushrooms and dairy products are rich in vitamin D. It is recommended to regularly test serum 25 hydroxyvitamin D levels to avoid repeated supplementation leading to accumulation poisoning. Excessive vitamin A may cause liver damage, while excessive vitamin D can lead to hypercalcemia. The specific supplementary plan should be personalized by doctors or nutritionists based on physical examination data, and the dosage cannot be increased or decreased by oneself.