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Recent podcast episodes


Read our recent Sigma Statements

Can Fasting Increase Longevity?

One propsed intervention that has garnered a lot of excitement, owing to some interesting research, is the potential use of fasting to increase longevity and/or healthspan. Within this broad category, various different dietary interventions have been suggested, including various forms of intermittent fasting, time-restricted eating, dietary restriction of certain nutritients, calorie restriction or a “fasting-mimicking” diet.
But what does the current evidence tell us? Do the conclusions match the excitement? Which claims are grounded in solid science and which ones are pseudoscientific extrapolations?

Continue Reading Can Fasting Increase Longevity?

Vitamin D and COVID-19: What Do We Know?

Vitamin D deficiency has been proposed to play a role in coronavirus infection. In addition, vitamin D supplementation has been explored as a potential adjunct treatment for those with severe COVID-19 infection. This Sigma Statement aims to summarize the available evidence regarding the potential role of vitamin D status, vitamin D genotypes and vitamin D supplementation and the risk of COVID-19 infection and mortality.

Continue Reading Vitamin D and COVID-19: What Do We Know?


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