energy metabolism11 options reviewed

What actually helps with low stamina

Reduced physical endurance and capacity for sustained exertion, feeling winded or exhausted more quickly than expected.

CoQ10
antioxidantwith_food
Strong

CoQ10 is essential for aerobic ATP production in the mitochondrial electron transport chain. It also protects against exercise-induced oxidative stress and improves maximal oxygen consumption (VO2 max) and time to exhaustion.

Dose: 100–300 mg

Iron
mineralempty_stomach
Strong

Iron is critical for oxygen transport via hemoglobin and muscle oxygen storage via myoglobin. It also supports mitochondrial cytochrome function. Even subclinical iron deficiency (low ferritin, normal hemoglobin) reduces exercise capacity.

Dose: 18–36 mg

Rhodiola
herbmorning
Strong

Rhodiola improves physical endurance by enhancing ATP resynthesis, increasing red blood cell count and oxygen-carrying capacity, and activating AMPK for improved mitochondrial biogenesis and fatty acid oxidation during exercise.

Dose: 200–400 mg

Creatine
amino_acid
Strong

Regenerates ATP via phosphocreatine system during high-intensity exercise. Increases lean body mass and anaerobic power.

Dose: 3–5 g

BCAAs
amino_acid
Strong

Stimulates muscle protein synthesis via mTOR pathway. Reduces exercise-induced muscle damage and protein degradation.

Dose: 5–20 g

L-Carnitine
amino_acid
Strong

Increases fat oxidation during exercise, sparing muscle glycogen. Reduces lactate accumulation.

Dose: 1000–2000 mg

Beta-Alanine
amino_acid
Strong

Combines with histidine to form carnosine, an intramuscular pH buffer. Delays acidosis during high-intensity exercise.

Dose: 3.2–6.4 g

L-Citrulline
amino_acid
Strong

Bypasses hepatic metabolism to boost plasma arginine and NO production. Increases blood flow and oxygen delivery.

Dose: 6–8 g

Strong

Supports testosterone production and provides ergogenic performance enhancement via hormonal optimization.

Dose: 200–400 mg

Maca
herb
Strong

Glucosinolate compounds provide energizing effects and enhance endurance performance capacity.

Dose: 1500–3000 mg

Phosphorus
mineral
Emerging

Essential for ATP synthesis and phosphocreatine energy system. Supports 2,3-DPG production for oxygen delivery to tissues.

Dose: 700–1000 mg

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