In the vast world of vitamins and minerals, one nutrient stands out not only for its critical role in maintaining health but also for its unique source: sunlight. Vitamin D, often referred to as the "sunshine vitamin," is essential for various bodily functions and overall well-being.

A common piece of health advice you have probably heard before is “Just eat real food”, or “Eat a balanced diet”. In a world where food is abundant and supermarket shelves are always stocked, it might seem that meeting our nutritional needs through diet alone should be a given.