Supplements for strength athletes

The strength-athlete supplement stack — in order of importance

Creatine monohydrate, 5 g/day

The single highest-yield supplement decision a strength athlete makes. Creatine increases intramuscular phosphocreatine, supporting high-intensity repeat efforts and recovery between sets. Meta-analyses show consistent 5–10% gains in strength and lean mass over equivalent training without creatine. Monohydrate is the trial-cited form — no need to pay for "HCl" or "kre-alkalyn" or buffered versions. Skip the loading phase if you don't want temporary water-weight gain; 5 g/day reaches saturation in 3–4 weeks. Take it any time of day; consistency matters more than timing. Cost: $5–10/month.

Protein intake — whey as a tool, not a magic bullet

Total daily protein 1.6–2.2 g/kg/day matters; the supplement form is secondary. Whey (or casein, or a plant blend) is the cheapest, most convenient way to hit that total. 0.3–0.4 g/kg per meal across 4–5 meals is the optimal distribution. Pre-sleep casein 30–40 g modestly improves overnight muscle protein synthesis. Don't bother with peri-workout fast-protein timing windows unless your training is on an empty stomach.

Caffeine — biggest acute performance ergogenic legally available

3–6 mg/kg of caffeine 30–60 minutes pre-session reliably improves strength, power, work capacity, and perceived exertion. Beyond ~9 mg/kg, returns diminish and anxiety/heart-rate effects dominate. Avoid late-evening training caffeine — half-life is 5+ hours; sleep is the limiting factor for progression. Coffee, tea, or anhydrous caffeine; all work.

Beta-alanine — for repeat-effort work

3–5 g/day for 8–12 weeks to load muscle carnosine, then 2–3 g/day maintenance. Most relevant for efforts in the 60s–4-min range (mid-rep CrossFit work, intense bodybuilding sets, accessory volume). Less relevant for 1RM-focused powerlifting. Splitting doses limits the tingling (paresthesia) side effect.

Citrulline malate — pre-workout for high-rep training

6–8 g citrulline malate (1:1) or 3–6 g L-citrulline 30–60 min pre-workout. Reduces fatigue and post-workout soreness in high-rep training, modest effect on volume tolerance. Less relevant for triples/singles.

Background supplements: vitamin D, magnesium, omega-3

Vitamin D3 to a 25-OH-D target of 30–50 ng/mL — low D status impairs muscle function and increases injury risk. Magnesium glycinate 300 mg at night for sleep and recovery; magnesium is one of the most commonly under-consumed nutrients in athletes. Omega-3 EPA+DHA 2 g/day for recovery and broader cardiovascular benefit.

Timing summary

Pre-workout: caffeine + citrulline (+ beta-alanine maintenance dose if loading is complete). Training day: hit protein totals. Post-workout: whey if a meal isn't soon. Daily: creatine, vitamin D if deficient, omega-3, magnesium. Pre-bed: casein or magnesium glycinate.