Yes — creatine monohydrate is one of the most thoroughly researched supplements in existence. Decades of studies show it's safe for healthy adults at recommended doses (3–5g/day). It does not cause kidney damage in people without pre-existing kidney disease, despite this persistent myth.

When should I take creatine?

Timing doesn't matter significantly. Some evidence favors post-workout consumption, but the effect is minor. Taking it consistently any time of day produces the same long-term results as strategic timing. Mix with water, juice, or a protein shake.

Supplement Guide for Beginners: What Actually Works

The Supplement Industry Reality

The global supplement industry is worth $150+ billion annually. The vast majority of supplements have weak or no scientific evidence supporting their marketed benefits. Only a handful have strong, replicated research behind them. Supplements also aren't FDA-regulated for effectiveness — only for safety after the fact.

Tier 1: Strong Evidence, Worth Considering

Creatine monohydrate: Increases phosphocreatine stores in muscle, improving performance in explosive/strength efforts by 5–15%. Also has cognitive benefits. Dose: 3–5g/day. Safe long-term. One of the most studied supplements in history. Not a stimulant — simply improves energy system capacity. Verdict: Highly recommended for strength athletes.
Caffeine: Improves endurance, strength, and reaction time. Dose: 3–6mg/kg body weight before training. Tolerance builds quickly — cycle off periodically. Verdict: Effective, already in coffee.
Protein powder (whey, casein, plant): Convenient way to meet protein targets. No magical properties — it's just food protein in powder form. Verdict: Useful if you struggle to hit protein goals from food.

Tier 2: Modest Evidence or Situational

Beta-alanine: Improves high-rep (8–15 rep range) performance modestly. Causes tingling (paresthesia). Niche use.
Vitamin D: Highly beneficial if deficient (most people in northern latitudes are). Minimal benefit if already sufficient. Get bloodwork to assess.
Omega-3 fish oil: Anti-inflammatory, cardiac benefits, possibly modest muscle protein synthesis support. Generally safe to supplement.

Save Your Money On

Pre-workout blends (you're paying for caffeine and a label), BCAAs (redundant if eating adequate protein), testosterone boosters, fat burners, "natural anabolics," and most "proprietary blend" supplements with undisclosed dosing.