What is a potential result of insufficient Vitamin D in the diet?

Insufficient Vitamin D in the diet can lead to poor calcium absorption, which is a critical function of Vitamin D in the body. Vitamin D plays a vital role in promoting the absorption of calcium and phosphorus in the intestines. When Vitamin D levels are low, the efficiency of calcium absorption from the diet diminishes significantly, which can lead to various health issues, particularly affecting bone health. This is why individuals with low levels of Vitamin D are at higher risk for bone-related conditions such as osteoporosis and rickets.

In contrast, increased muscle strength, improved skin tone, and enhanced immunity are not direct results of Vitamin D deficiency. Although Vitamin D does have a role in muscle function and immune health, its primary and most immediate consequence of insufficiency manifests through impaired calcium absorption. Thus, highlighting the importance of adequate Vitamin D intake for overall health and specifically for maintaining proper calcium levels in the body.