What is the recommended daily intake of vitamin D?

The recommended daily intake of vitamin D for most adults is indeed 600 IU/day. This guideline is based on the needs to maintain healthy bones and support various bodily functions, including immune response and calcium absorption. Vitamin D can be acquired through sun exposure, dietary sources, and supplements, and 600 IU/day is considered adequate for most individuals to achieve sufficient blood levels of vitamin D without risking toxicity or deficiencies. It is important to consider that individual needs may vary due to factors such as age, health status, geographic location, and lifestyle. While higher doses may be recommended for specific populations or conditions, the general consensus aligns with the 600 IU/day guideline for overall health maintenance.