Supplements for low stamina and exercise fatigue

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Energy & fatigue

Tiring quickly during exercise is commonly linked to low iron stores; iron, CoQ10, and creatine support oxygen delivery and energy output.

Even without full anaemia, low ferritin reduces how much oxygen your blood carries to working muscle, which shows up first as breathlessness and early fatigue on exertion, especially in athletes and menstruating women. CoQ10 fuels mitochondrial energy and creatine supports short, powerful efforts.

Nutrients commonly linked

Iron Bisglycinate
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CoQ10
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Creatine Monohydrate
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Methyl-B12
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Beetroot Powder
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Biomarkers worth checking

These are the blood tests most relevant here. Knowing your numbers tells you whether a supplement is the right answer.

FerritinVitamin B12
When to see a doctor

Unusual breathlessness, chest tightness, or a racing heart during light activity should be checked by a doctor before you train through it.

Beyond supplements

Pair iron-rich foods with vitamin C, and build training volume gradually so fatigue is conditioning, not a deficiency.

Common questions

What supplements help with low stamina and exercise fatigue?
Tiring quickly during exercise is commonly linked to low iron stores; iron, CoQ10, and creatine support oxygen delivery and energy output. The nutrients most often linked are Iron Bisglycinate, CoQ10, Creatine Monohydrate, Methyl-B12, Beetroot Powder.
Which deficiencies are associated with low stamina and exercise fatigue?
Even without full anaemia, low ferritin reduces how much oxygen your blood carries to working muscle, which shows up first as breathlessness and early fatigue on exertion, especially in athletes and menstruating women. CoQ10 fuels mitochondrial energy and creatine supports short, powerful efforts.
When should I see a doctor about low stamina and exercise fatigue?
Unusual breathlessness, chest tightness, or a racing heart during light activity should be checked by a doctor before you train through it.

Explore further

Find out what's actually low

Upload your bloodwork and we'll read the relevant markers, or take the quiz for a personalised stack.

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Educational use only, not medical advice, diagnosis, or treatment. Symptoms have many possible causes, and the nutrients here are commonly associated with this symptom, not a guaranteed fix. Always consult a qualified clinician, especially if symptoms are severe, persistent, or new.