/widgets.js";var sz=d.getElementsByTagName(s)[0];sz.parentNode.insertBefore(z,sz)}(document,"script","zb-embed-code"));

What is BG SD?

BG SD stands for Blood Glucose Standard Deviation. FYI: https://en.wikipedia.org/wiki/Standard_deviation https://diatribe.org/understanding-average-glucose-standard-deviation-cv-and-blood-sugar-variability http://diabetes.diabetesjournals.org/content/62/5/1398