What Supplements Should You Take for Strength Training? A Simple Guide
Walk into any supplement store or scroll through fitness content online and you'll find thousands of products all claiming to be essential. Pre-workouts, fat burners, BCAAs, collagen, adaptogens - the list is overwhelming.
Most of it isn't necessary. A lot of it isn't worth the money.
The supplement industry is large, aggressive, and largely unregulated. That combination produces a lot of noise and very little signal. This guide cuts through it. Here's what actually works, what's optional, and how to build a simple starting plan that matches your goals.
At bStrong, we believe the foundation of your results is training, nutrition, sleep, and stress management. Supplements support that foundation. They don't replace it.
⚠️ Important Disclaimers: This information is for general educational purposes only and should not be considered medical advice. Always consult with a qualified healthcare professional, such as your doctor or a registered dietitian, before starting any new supplement regimen, especially if you are pregnant, nursing, taking medication, or managing a health condition.
bStrong does not endorse any one supplement brand across the board—but we do use and recommend some products ourselves. In particular, we may receive referral commissions from Thorne if you purchase through our links or practitioner portal. We only suggest these because we trust the quality and use them personally. There's no pressure—please make informed decisions that work best for you.
What supplements actually work for strength training?
Most people don't need many supplements. The ones with the strongest evidence for people who strength train are protein powder (to hit daily protein targets), creatine monohydrate (to support strength and training volume), and omega-3s (for joint health and inflammation). Vitamin D3 is worth adding if you live in a low-sunlight region like the Pacific Northwest. Everything else is optional. Your training, nutrition, sleep, and stress management produce 95% of your results. Supplements produce the rest - at best.
If you're still not sure whether you even need supplements at all, read this first: Do You Actually Need Supplements?
Do you actually need supplements?
For most people starting out - no.
If your nutrition is inconsistent, your sleep is poor, and your training schedule is irregular, no supplement will fix those things. Supplements work on top of a solid foundation. They don't create one.
The supplement industry is also largely unregulated. Unlike medications, supplements are not required to prove they're effective or safe before being sold. Quality varies enormously between brands. If you do take supplements, look for products that are third-party tested - labels like NSF Certified for Sport, Informed Choice, or USP Verified mean the product has been independently verified to contain what it claims.
The honest starting point: fix your meals, train consistently, sleep enough, and manage stress. Once those are in place, a small number of well-chosen supplements can add a meaningful edge. Before that, they're mostly expensive.
The only supplements most people should consider
If you're going to start anywhere, start here. These three have the most research support and the most practical impact for people who strength train.
Protein powder A convenient way to hit your daily protein target when whole food sources aren't accessible. Most people who strength train need 0.6-1g of protein per pound of bodyweight per day. If you're consistently hitting that through food alone, you don't need protein powder. If you're not, a shake is the simplest way to close the gap. Read our complete protein guide for specific targets.
Creatine monohydrate The most research-backed supplement for strength and muscle. 5g per day, taken consistently, supports training volume and strength output. Safe for long-term use. No loading phase required. No cycling off. Take it daily and give it 3-4 weeks to saturate. Read our full creatine guide for everything you need to know.
Omega-3s (fish oil) 1,000-3,000mg of combined EPA/DHA per day supports joint health and helps manage inflammation from consistent training. Useful for people in their 40s and beyond who notice joint discomfort. Not essential for everyone but a reasonable addition once the basics are covered.
What supplements help with fat loss and body composition?
Keep it simple. The marketing around fat loss supplements is aggressive and mostly unsupported.
Protein powder - Helps maintain muscle mass while in a calorie deficit. Most important one in this category.
Fiber supplement (psyllium husk, inulin) - May support fullness and blood sugar stability. Useful if your diet is consistently low in fiber. 5-10g per day with plenty of water.
Electrolytes - Helpful if you're sweating heavily or significantly reducing calories. Look for products with sodium, potassium, and magnesium.
Caffeine - The most evidence-backed performance supplement available. A cup of coffee 30-60 minutes before training is as effective as most pre-workouts and far cheaper.
What to skip: fat burners, thermogenics, and anything promising rapid weight loss. The evidence is weak and the risk of low-quality ingredients is real.
What supplements support muscle gain and workout performance?
Protein powder - To hit daily protein targets, particularly post-workout.
Creatine monohydrate - 5g daily. Start here before anything else in this category.
Pre-workout - Optional. Look for caffeine (100-200mg), citrulline (6-8g), and beta-alanine (2-5g). Start with a half dose to assess tolerance. Can cause jitters and sleep disruption if taken too late in the day.
Omega-3s - May support joint comfort and manage inflammation from heavy training. 1,000-3,000mg combined EPA/DHA per day.
What supplements support long-term health and recovery?
Vitamin D3 - 1,000-2,000 IU per day. Deficiency is extremely common in the Pacific Northwest. Supports immune function, mood, and bone health. Worth testing your levels with a doctor if you're unsure.
Magnesium - 200-400mg per day (glycinate or citrate forms are best tolerated). May support sleep quality and muscle recovery.
Multivitamin - A basic insurance policy for micronutrient gaps. Not a replacement for eating well but a reasonable daily addition.
Joint support (glucosamine, MSM, turmeric) - Evidence is mixed. Some people report meaningful improvement in joint discomfort. Worth trying if joint pain is ongoing but don't expect dramatic results.
Sleep support (magnesium, L-theanine, melatonin) - May help with falling asleep for some people. Prioritize sleep hygiene fundamentals first. Start low to assess response and avoid daily dependence where possible.
Simple supplement combinations by goal
Fat loss: Protein + fiber supplement + electrolytes
Muscle gain: Protein + creatine + omega-3s
General health: Vitamin D3 + omega-3s + magnesium
Start with one category. Add one supplement at a time and give each one 3-4 weeks before assessing whether it's making a difference.
What do most people get wrong about supplements?
A few mistakes come up consistently.
Thinking they need everything. Most people who buy a full supplement stack don't need half of it. Start with protein and creatine. Add things one at a time and assess honestly whether they're making a difference.
Chasing trends. New supplements get aggressively marketed every year. Most have weak or no evidence, a few early studies that get overhyped, and disappear within 18 months. Stick to the basics with decades of research behind them.
Skipping the foundation. Supplements on top of poor sleep, inconsistent training, and a low-protein diet produce nothing. The foundation has to come first.
Buying cheap, unverified products. The supplement industry has a real quality problem. Cheap products often contain less than labeled, more than labeled, or unlisted ingredients. Third-party testing is the minimum standard worth paying for.
Expecting supplements to replace effort. Nothing in a tub speeds up results beyond what consistent training and adequate nutrition produce. Supplements are marginal gains on top of a working foundation - not a shortcut to one.
A simple starting plan
If you're not sure where to begin, follow this sequence.
Step 1: Fix your meals first. Hit your protein target (0.6-1g per pound of bodyweight) through food. Eat enough to support your training. Get vegetables and fiber in. No supplement matters until this is reasonably consistent.
Step 2: Train consistently. Two to three sessions per week for 6-8 weeks. Build the habit before worrying about optimization.
Step 3: Add protein powder if needed. If you're consistently falling short of your protein target through food alone, a protein shake is the simplest fix. One scoop after training or between meals is enough for most people.
Step 4: Consider creatine. After a month or two of consistent training and adequate protein, add 5g of creatine monohydrate daily. Give it 3-4 weeks to take full effect.
That's it for most people. Everything else is optional and situational.
What does this look like at bStrong?
Supplements come up regularly with members at our Bellevue and Redmond locations. Our answer is almost always the same: get the training consistent first, hit your protein target, then consider adding creatine once those are in place.
Most members don't need a supplement stack to see results. They need to show up 2-3 times per week, move well, and eat enough protein. When those are dialed in, a few targeted additions can provide a small additional edge.
If you're curious about what makes sense for your specific situation, your coach is the right person to ask. We're not here to sell supplements - we're here to help you figure out what's actually worth your time and money.
We have a partnership with Thorne for members who want access to high-quality, third-party tested supplements. bStrong members get 10% off and free shipping - you can browse their products here.
Your Responsibility: You are solely responsible for researching and selecting any supplements you choose to consume. By choosing to use any supplements mentioned or implied in this guide, you acknowledge and accept the inherent risks associated with their use and agree that bStrong and its trainers are not liable for any adverse effects or consequences.
Frequently asked questions
Do I need supplements to get results from strength training?
No. Consistent training, adequate protein from food, and good sleep produce the vast majority of results. Supplements are a small addition on top of those foundations - not a replacement for them. Most people new to strength training don't need anything beyond potentially protein powder if they're struggling to hit their daily protein target.
Is creatine safe?
Yes, for most healthy adults including with long-term use. Creatine is one of the most studied supplements available and has a strong safety record. It's not a steroid and doesn't affect hormones. If you have kidney issues or other health conditions, check with your doctor first. Read our full creatine guide for a complete breakdown.
What's the best supplement for beginners?
Protein powder if you're not hitting your daily protein target through food. Creatine monohydrate once you've been training consistently for a month or two. Those two cover the vast majority of what beginners can benefit from. Everything else can wait.
Are fat burners worth it?
For most people, no. The evidence for most fat burner ingredients is weak, the marketing is aggressive, and quality in this category is inconsistent. Caffeine is the one ingredient with genuine evidence for performance - and you can get it from coffee for a fraction of the cost. Focus on protein, training, and sleep before considering anything in this category.
Can I build muscle without supplements?
Yes. Consistent strength training and adequate protein intake from food are sufficient for meaningful muscle growth. Creatine and protein powder can make the process slightly more efficient - but they're not prerequisites.
If you're not sure what you actually need - or whether you need anything at all - that's a conversation worth having with a coach rather than a supplement retailer.
Our 3-week trial includes a consultation call where we talk through your goals, training history, and nutrition habits. We'll give you an honest starting point with no supplement agenda. Small group personal training in Bellevue and Redmond for $99. No long-term commitment.