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Sigma Nutrition Radio

Jun 30, 2026

Electrolytes have become one of the most heavily marketed areas of modern sports nutrition and wellness. What was once a relatively specific tool for certain endurance athletes has increasingly been reframed as an everyday requirement for hydration, energy, focus, productivity, and general health optimisation.

But how...


Jun 23, 2026

This is a Premium-exclusive episode. Go to the Premium feed to listen. Or subscribe to Premium.

Blood glucose is easy to measure, but not always easy to interpret. This Premium-only episode brings together insights from several previous guests to examine blood glucose responses in more detail.

We discuss the...


Jun 16, 2026

When considering the health impact of foods, it is important to consider “compared to what?”. Increasing the amount of a certain food or nutrient in the diet, typically implies a displacement of another.

While comparisons are more obvious in trials, in epidemiology food substitution models can be useful to help us...


Jun 9, 2026

Unprocessed red meat and cancer risk remains one of the most debated topics in nutrition science, partly because the evidence is often presented in overly simplistic terms.

The key question is not whether to adopt a vague “balanced” position on red meat, but whether the evidence clearly identifies intake levels at...


Jun 2, 2026

Performance nutrition in elite sport is often discussed in terms of meal plans, supplements, and macronutrient targets. However, effective practice in professional environments depends just as much on education, trust, communication, and the ability to translate scientific principles into decisions athletes can act...