2. Sunbathing: The baby can bask in the sun properly, because the skin can synthesize vitamin D by itself.
3. Give your baby vitamin D: If your baby can't get enough vitamin D through food and sunbathing, you can consider giving your baby vitamin D.. But it needs to be used according to the doctor's advice and dosage.
4. Pay attention to diet: The baby's diet should be reasonable, including protein, calcium, phosphorus and other nutrients to help the body better absorb and utilize vitamin D.
5. Regular check-up: Babies need regular blood tests to ensure normal vitamin D levels in the body. If vitamin D deficiency is found, measures should be taken to supplement it in time.