HEALTH THRU NUTRITION - Vitamin D3 250mcg 10,000 IU - 360 SoftgelsDESCRIPTION It is estimated that over 40% of the US population has low vitamin D levels. Unfortunately, as we age, our ability to convert dietary vitamin D into its active form diminishes, as does our ability to synthesize vitamin D from sunshine, reducing our bodys vitamin D levels further. Therefore, people 50 years old and above are at an increased risk of developing vitamin D deficiency. A simple blood test can determine your vitamin D level (a