Building lean muscle mass naturally without synthetic enhancers is not only safer but also sustainable in the long term. That’s why more athletes and fitness enthusiasts are turning to natural supplements for bodybuilding. These products harness plant-based and whole-food ingredients that support muscle growth, recovery, endurance, and energy, without harmful side effects.
In this 2025 guide, we review the top 13 natural supplements for bodybuilding available and explain what makes each one worth considering.
Top 13 natural supplements for bodybuilding
1. Transparent Labs Grass-Fed Whey Protein Isolate
One of the highest-quality protein powders available, this is one of the most effective natural supplements for bodybuilding. The Transparent Labs Grass-Fed Whey Protein Isolate is made from 100% grass-fed cows with no artificial sweeteners, food dyes, or preservatives. Each serving provides 28g of protein and only 120 calories. This protein supplementation has been shown to significantly enhance muscle protein synthesis, particularly after resistance training.
- Pros: Easily digestible, non-GMO, clean ingredient list
- Cons: Higher price point than conventional whey
2. Optimum Nutrition Gold Standard 100% Plant-Based Protein
This vegan-friendly alternative combines pea, rice, and fava bean protein to offer a complete amino acid profile. If you are a vegan looking for natural supplements for bodybuilding it’s ideal for you. Essentially, the Optimum Nutrition Gold Standard 100% Plant-Based Protein is for those who follow a plant-based diet but still need quality protein for muscle building.
- Pros: Dairy-free, includes vitamin B12 and iron
- Cons: Slightly gritty texture
3. NutraBio Creatine Monohydrate
Creatine is one of the most extensively studied supplements in sports nutrition. NutraBio offers a pure, micronized version with no fillers or additives. It supports increased power output, lean muscle mass, and improved workout performance.
- Pros: Lab-tested, micronized for faster absorption
- Cons: Requires consistent use to see effects
A study published in the Journal of the International Society of Sports Nutrition confirms that creatine supplementation enhances strength and lean body mass gains during resistance training.
4. Kaged Muscle Ferodrox Testosterone Support
Natural testosterone boosters like Ferodrox use plant-based compounds such as Ashwagandha and DIM (Diindolylmethane) to optimize hormonal levels and support muscle growth. The fact that the Kaged Muscle contains ferodrox makes it one of the most effective natural supplements for bodybuilding.
- Pros: Clinically-dosed ingredients, transparent labeling
- Cons: Must be taken consistently over weeks for full effect
Ashwagandha has been shown in clinical trials to improve strength and recovery. According to a study published on the National Library of Medicine, it significantly increased muscle mass and reduced body fat in resistance-trained males.
5. Legion Pulse Natural Pre-Workout
Legion Pulse uses naturally sourced caffeine from coffee beans and includes nitric oxide boosters like citrulline malate to enhance pumps, endurance, and focus during workouts.
- Pros: Naturally sweetened, effective energy without crash
- Cons: High caffeine content may not suit everyone
6. Garden of Life Sport Organic Plant-Based Protein
Made with 30g of protein per serving and a blend of organic turmeric and antioxidant-rich berries, this powder supports post-workout recovery and inflammation reduction. If you are a vegan, this is one of the best natural supplements for bodybuilding available in the market for you.
- Pros: USDA organic, NSF Certified for Sport
- Cons: Some flavors can be overly earthy
7. Jarrow Formulas L-Citrulline
L-Citrulline enhances blood flow, improves nutrient delivery to muscles, and reduces workout fatigue. Jarrow’s version is pure, vegan, and well-rated for efficacy.
- Pros: Supports endurance, improves recovery
- Cons: Works best when combined with exercise
8. Naturelo Whole Food Multivitamin for Men
Often overlooked, micronutrient deficiencies can stall bodybuilding progress. This multivitamin offers a blend of essential nutrients derived from real fruits and vegetables.
- Pros: Supports immune and muscle function
- Cons: Large capsules may be hard to swallow
9. Sports Research Collagen Peptides
Collagen isn’t just for skin. It’s a key protein in connective tissues. Supplementing with collagen can improve joint health, which is essential for heavy lifters and long-term progress. The Sports Research Collagen Peptides is therefore, one of the best natural supplements for bodybuilding because it contains Collagen.
- Pros: Promotes joint and tendon support, flavorless
- Cons: Not suitable for vegans
10. Naked Nutrition Naked BCAAs
Branched-chain amino acids (BCAAs) help reduce muscle breakdown during intense workouts. This product provides a clean, unflavored source with no artificial ingredients.
- Pros: No additives, quick absorption
- Cons: Bitter taste if taken without mixing
11. Ora Organic Vegan Omega-3
Omega-3 fatty acids from algae promote muscle recovery and reduce inflammation. Ora’s product is plant-based, avoiding fishy aftertaste and supporting sustainability. Also, research in the Journal of the International Society of Sports Nutrition, says that omega-3 fatty acids support muscle protein synthesis and reduce delayed onset muscle soreness. This is primarily why this product is one of the best natural supplements for bodybuilding
- Pros: Vegan, sustainably sourced
- Cons: Slightly more expensive than fish oil
12. BulkSupplements Beta-Alanine Powder
Beta-alanine increases muscle carnosine levels, buffering acid buildup during intense training. This product offers a high-purity form for maximum results.
- Pros: Cost-effective, improves endurance
- Cons: Can cause tingling sensation
13. Truvani Organic Plant-Based Protein Powder
Co-founded by health advocate Vani Hari, Truvani offers a minimal-ingredient, non-GMO protein made with organic peas, pumpkin seeds, and chia seeds.
- Pros: Clean label, USDA certified organic
- Cons: Limited availability in some regions
How to Choose the Right Natural Supplements for Bodybuilding
With so many options available, choosing the best natural supplements for bodybuilding can feel overwhelming. Start by identifying your personal fitness goals, are you looking to build mass, improve endurance, recover faster, or support joint health? Your answer will guide your supplement choices. For example, creatine and protein powders are ideal for muscle mass, while omega-3s and collagen help with recovery and joint care.
Next, read ingredient labels carefully. Look for products with transparent labeling, third-party testing, and certifications like NSF Certified for Sport or USP Verified. Avoid supplements with artificial sweeteners, proprietary blends (which often mask low-quality fillers), and unproven “miracle” ingredients.
Lastly, consider how your body responds. Everyone’s physiology is different, so what works well for someone else might not suit you. Trial-and-error with one product at a time (while keeping diet and exercise consistent) is the safest route.
Tips to Maximize Results from Natural Supplements for Bodybuilding
Taking natural supplements alone won’t produce results without the right habits. To truly maximize gains, implement the following best practices:
- Consistent Strength Training: Supplements support your body’s natural process—they don’t replace workouts. A progressive overload routine is key.
- Nutrient-Dense Diet: Focus on lean proteins, complex carbs, healthy fats, and fiber-rich fruits and vegetables to support supplement function.
- Hydration: Many supplements like creatine and BCAAs are water-dependent for absorption and performance.
- Rest and Recovery: Muscles grow during rest. Prioritize sleep and rest days to allow your supplements to do their job.
- Track Progress: Log your workouts, energy levels, and physical changes to evaluate which supplements are truly effective.
Common Mistakes to Avoid When Using Natural Supplements for bodybuilding
Even the best supplements won’t work if used incorrectly. Many beginners unknowingly sabotage their progress by making avoidable mistakes. Understanding these pitfalls can help you make the most of your natural bodybuilding regimen.
1. Skipping Dosage Instructions
Each supplement has a recommended dosage for a reason. Taking more doesn’t mean faster results, it can cause digestive issues or liver strain. For instance, too much creatine can lead to bloating or cramping, while excessive BCAAs may burden your kidneys.
2. Expecting Immediate Results
Natural supplements support the body’s gradual processes. Unlike synthetic or steroid-based boosters, their benefits accumulate over time. If you don’t see changes after a few days, be patient and track your progress over weeks.
3. Ignoring Diet and Sleep
Supplements should complement, not replace, a balanced lifestyle. If your diet lacks key nutrients or you’re getting less than 7 hours of sleep, even the best supplements won’t be as effective. As emphasized in a Cleveland Clinic article, sleep quality has a major influence on muscle repair and hormonal balance.
4. Not Cycling or Taking Breaks
Some natural supplements for bodybuilding, such as caffeine-based pre-workouts, can cause tolerance buildup. Cycling off these every few weeks helps maintain their effectiveness and avoid dependency.
Can You Build Muscle Without Supplements?
Absolutely, many bodybuilders achieve impressive physiques through disciplined training and whole foods alone. However, supplements offer convenience, nutritional support, and performance enhancement, especially when daily needs aren’t met through food alone. Here’s when supplements can make a noticeable difference:
- Busy schedules: A protein shake after a morning workout is faster than cooking eggs and chicken.
- Dietary restrictions: Vegans may struggle to get enough leucine (a key amino acid for muscle growth) from plants alone.
- Plateaus: Natural testosterone boosters or creatine may help break through stubborn training ruts.
Still, supplements are not magic. A well-planned whole food diet, smart training, and consistency will always be the foundation of sustainable muscle growth.
Conclusion
Using natural supplements for bodybuilding is a smart choice for athletes who want to build muscle safely and sustainably. From protein powders and plant-based omega-3s to recovery-focused BCAAs and joint-supporting collagen, these 13 Amazon-reviewed options offer powerful, science-backed support for your fitness goals. The best part? You can avoid the artificial additives and proprietary blends that often compromise health. As with all supplements, consult with a healthcare provider to ensure compatibility with your personal health needs and goals.
Frequently Asked Questions
What are the best natural supplements for muscle growth?
Protein powders, creatine, BCAAs, and omega-3 fatty acids are among the most effective natural supplements for promoting muscle growth and recovery.
Are natural bodybuilding supplements safe?
Yes, most natural supplements are safe when used as directed. However, it’s essential to choose high-quality products and consult with a healthcare provider before starting any new regimen.
Can I build muscle without natural supplements for bodybuilding?
Yes, muscle can be built through diet and training alone, but supplements help fill nutritional gaps and speed up recovery, particularly for those with intense workout routines.
What’s the best time to take natural supplements for bodybuilding?
Timing varies by supplement. Protein is most effective post-workout, creatine and beta-alanine work best pre- or post-workout, while omega-3s and multivitamins can be taken anytime with food.
