nutrition bytes by geoff brokx and shelby miller two new studies show boosting vitamin d levels may lead to better outcomes in covid-19 why a 2021 study investigated the impact of oral supplementation with high-dose vitamin covid-19 and low vitamin d levels vitamin the subjects were randomized to receive either a high dose of vitamin d for eight to 10 days the above study shows that correcting insufficient vitamin d levels is crucial to maintaining immune competence in the age of covid-19 another 2021 study confirms this conclusion by showing that having optimal vitamin d levels is associated with a decreased risk of mortality from covid-19 in elderly patients and patients at boston university medical center and compared serum vitamin d levels with covid-19 dont know your vitamin d levels? now is the time to get them checked unable to get them checked anytime soon? supplementing with vitamin d has been and effective way to support optimal vitamin d levels artificial colors and hyperactivity in children environmental health hazard assessment found strong evidence that seven different artificial colors commonly used in food can cause or exacerbate behavioral problems in effects of artificial colors and assessed their impact on different stages of development the review specifically looked at the impact artificial colors can easily be avoided by reading labels and avoiding ingredients with colors such as artificial colors are found in a wide variety the-counter medications intended for studies that found artificial colors negatively affect behavior by inhibiting the necessary for brain cell communication colors interfere with the stress signaling pathway and disrupt thyroid and estrogen receptors necessary for healthy brain exposure limits for artificial food coloring