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UNTAPPED with Spencer Matthews

UNTAPPED with Spencer Matthews

3 Deficiencies Holding You Back | Extra Mile

Oct 8, 2026 · 42m

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About this episode

Are you tired because life is busy… or could your body actually be missing something? In this episode of Untapped Extra Mile, Oli Patrick tackles some of the most common nutrient deficiencies - iron, vitamin D and B12 - and explains how they could be affecting your energy, health and running performance. Oli breaks down the warning signs to look out for, from unexplained fatigue and breathlessness to changes in performance, and explores when blood testing can actually be useful. He also explains why runners may need to pay particular attention to their nutrient levels, whether supplements are really necessary, and why simply taking more isn’t always the answer. Plus, we look at why…