Vitamin D and strengthening the Immunity to overcome COVID-19 – by Sunil J. Wimalawansa “Nutrient Clinical Trials in COVID-19” International Vitamin D Conference, Abu Dhabi, UAE. Please feel free to make your comments and subscribe to the channel by pressing the red button (free). Trial designs of some recent large “Vitamin D RCTs” had significant, avoidable errors that generated unsatisfactory results. These studies were costly. For example, the VITAL study cost $40+ million of NIH/taxpayer funds yet much of the results generated were non-generalisable. Also discussed are basic principles and straightforward guidance on properly conducting nutrients clinical trials, emphasising COVID-19—presented at the International Congress of Vitamin D, 8th October 2021. Staying Healthy: “The Ways to Use Vitamin D to Control COVID-19”: Prof. Sunil J. Wimalawansa, USA. Key-Note Speech, International Vitamin D Conference, Abu Dhabi, UAE, 2021. Please add your comments to benefit others and subscribe (free) to the “Staying Healthy” channel by pressing ...