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Sigma Nutrition Radio

Dec 27, 2022

Iron is involved in a whole range of biological processes and a consistent supply of iron is crucial for cellular turnover. But despite iron being an essential mineral for human function, it is highly toxic to cells and tissues if present at high levels. Therefore an intricate and tight regulation of iron...

Dec 20, 2022

The current food environment is continuously highlighted as a problem for public health. And so there is a strong focus in both public policy and research circles to determine which strategies could lead to a healthier food environment.

One potential strategy that is widely recommended by public health experts is the...

Dec 13, 2022

In October 2022, Ruddick-Collins et al. published results of an RCT looking at the impact of different calorie distributions across the day. This study was from the ‘Big Breakfast Study’ project, primarily from the University of Aberdeen.

In this study, 30 subjects underwent two 4-week calorie-restricted diets that...

Dec 6, 2022

In this episode, the Sigma team explores the question: “Do vegan diets increase the risk of depression?”

This is a question that emerges from a few different places. First, it’s common to hear such a claim from proponents of largely animal-based diets. Some reference is often made about how vegan diets can, at...

Nov 29, 2022


About this episode:

Over the past decade, the increasing uptake and acceptance of the Nova food processing classification system has placed focus on one of the categories in Nova; ultra-processed...