It’s available all year round, it’s free of cost and it maybe the best thing for your baby. Sunbathing for as little as 30 minutes a week can prevent Vitamin D deficiency in infants and ensure calcium absorption for normal growth and development of bones. In the winter months, when your infant is bundled up well with only hands and face exposed, sunlight for 2 hours a week is adequate.
Source: InnoHealth Magazine.