People with darker skin benefit in areas with high UV light/radiation because they have lower rates of destruction of:  lactose   folate   vitamin D   calcium

People with darker skin benefit in areas with high UV light/radiation because they have lower rates of destruction of folate.

Here's the step by step explanation:

1. Melanin, the pigment that gives skin its color, acts as a natural sunscreen. It absorbs and disperses UV radiation, protecting the skin from damage.

2. In areas with high UV radiation, this protection is particularly beneficial. It prevents the breakdown of many essential nutrients.

3. One of these nutrients is folate (also known as folic acid or vitamin B9). Folate is crucial for DNA replication, repair, and maintenance. It's also important for the production of red and white blood cells.

4. UV radiation can break down folate in the body. This can lead to folate deficiency, which can cause a variety of health problems, including anemia and birth defects.

5. Therefore, people with darker skin, who have more melanin, are less likely to experience folate breakdown in areas with high UV radiation. This is a significant benefit, as it helps to maintain healthy levels of this essential nutrient.