The Most Common Supplement Question — Answered
Walk into any supplement store and you'll face a wall of options. But for most people building strength, losing fat, or just trying to feel better, the decision comes down to two products: creatine and protein powder. So which one should you take? Both? Neither? Let's break it down.
What Is Creatine?
Creatine is one of the most researched supplements in sports science — and one of the few that consistently delivers results. It's a naturally occurring compound found in meat and fish that your body uses to produce energy during short, intense bursts of activity like lifting, sprinting, or HIIT.
What creatine does:
- Increases strength and power output
- Helps you push out more reps at the same weight
- Speeds up muscle recovery between sets
- Supports lean muscle growth over time
Who should take it: Anyone doing resistance training, HIIT, or any sport that involves explosive movements. Creatine is effective for both men and women.
How to take it: 3–5g per day, every day — even on rest days. Micronized creatine monohydrate mixes cleanly into water, juice, or a shake with no gritty texture.
What Is Protein Powder?
Protein powder is exactly what it sounds like — a convenient way to hit your daily protein target. Your body uses protein to repair and build muscle tissue after workouts. If you're not eating enough protein through food alone, a shake fills the gap.
What protein powder does:
- Supports muscle repair and growth after training
- Helps you feel fuller for longer
- Makes hitting daily protein targets easier
- Convenient meal or snack replacement on busy days
Who should take it: Anyone who struggles to get enough protein from food. The general target is 0.7–1g of protein per pound of bodyweight per day. If you're hitting that through chicken, eggs, and fish — you may not need it. If you're not, a quality whey protein closes the gap fast.
How to take it: One scoop (typically 24–25g of protein) mixed with water or milk, post-workout or any time of day.
Creatine vs Protein — Key Differences
- Purpose: Creatine boosts performance. Protein supports recovery and muscle building.
- Timing: Creatine works best taken consistently every day. Protein is most useful around workouts or when dietary intake is low.
- Results: Creatine improves strength within 2–4 weeks. Protein results depend on your overall diet and training.
- Calories: Creatine has zero calories. Protein powder adds ~120 calories per serving.
Should You Take Both?
Yes — and most serious athletes do. They work through completely different mechanisms, so there's no conflict. Creatine improves your performance in the gym. Protein helps your muscles recover and grow from that performance. Together, they cover both sides of the equation.
A simple daily stack:
- Morning: 5g micronized creatine in water or your morning shake
- Post-workout: 1 scoop whey protein in water or milk
What to Look For When Buying
Creatine: Look for micronized creatine monohydrate with no fillers, artificial flavors, or proprietary blends. Unflavored is best — it mixes into anything.
Protein: Look for whey protein isolate or isolate-primary blends with at least 20–25g of protein per serving, low sugar, and third-party testing for banned substances if you compete.
Shop Our Supplements
At OneSource Fitness and Nutrition, we carry only trusted, high-quality supplements with no fluff. Whether you're starting with creatine, protein, or both — we've got you covered.
Browse our full supplements collection or check out our Home Gym Starter Kit to pair your nutrition with the right equipment.
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