
5 Science-Backed Supplements Every Beginner Should Consider (and Why They Work)
When you’re starting a fitness journey, it’s easy to get overwhelmed by the sheer number of supplements out there. Some are backed by solid research, while others are all marketing fluff. We make it easy for you.
6/23/20254 min read
These five supplements have consistently shown benefits in peer-reviewed studies. They won’t replace hard work, proper nutrition, and recovery—but they’ll help you maximize the return on your effort. Think of these supplements as ways to drastically improve and speed up your fitness journey, not as ways to get that dream physique right away... because that simply is not possible. It takes hard work and dedication, so why not aid your progress the right way. Lets get into it:
1) Whey Protein
What it is: Whey is a fast-digesting protein derived from milk. It's rich in essential amino acids, especially leucine—crucial for muscle protein synthesis.
How it works: When consumed post-workout, whey provides your muscles with the building blocks they need to repair and grow. The high leucine content makes it one of the most effective proteins for triggering muscle recovery.
Why you need it: If you're not consistently hitting your daily protein target through food alone, whey is a convenient, cost-effective way to supplement. It's especially valuable after workouts or first thing in the morning.
Study: Tang et al. (2009) showed that whey protein stimulated muscle protein synthesis more effectively than soy or casein in young men post-resistance training.
Our Favorites:
Optimum Nutrition Gold Standard Whey – Trusted, great taste, and mixes well.
Transparent Labs Grass-Fed Whey Isolate – Clean label, no artificial sweeteners.
2) Creatine Monohydrate
What it is: A naturally occurring compound stored in your muscles, creatine helps regenerate ATP—the energy currency your muscles use during high-intensity efforts.
How it works: Supplementing with creatine increases your muscles’ phosphocreatine stores, leading to more energy availability during short, explosive movements like lifting or sprinting.
Why you need it: It’s one of the most studied and effective supplements for improving strength, power, and lean mass. It’s safe, affordable, and effective.
Study: Kreider et al. (2003) found that creatine supplementation significantly improved strength and lean body mass in athletes.
Our Favorites:
Bulk Supplements Creatine Monohydrate – Pure, micronized, and affordable.
Kaged Creatine HCl – Easier on the stomach, no loading phase required.
3) Omega-3 Fatty Acids (Fish Oil)
What it is: Omega-3s are essential fatty acids found in fish oil. EPA and DHA are the two most beneficial forms, known for their anti-inflammatory properties.
How it works: Omega-3s help reduce inflammation, improve joint health, support cardiovascular function, and may even aid in muscle protein synthesis.
Why you need it: If you don’t eat fatty fish regularly (2–3 times a week), supplementing can fill in the gap. It’s particularly useful for recovery and long-term joint health.
Study: Smith et al. (2011) found that omega-3 supplementation increased the muscle protein synthesis response to amino acid and insulin infusion in healthy older adults.
Our Favorites:
Nordic Naturals Ultimate Omega – High EPA/DHA content, lemon-flavored softgels.
Viva Naturals Omega-3 Fish Oil – Affordable and third-party tested.
4) Vitamin D3 + K2
What it is: Vitamin D is a fat-soluble vitamin critical for bone health, immune function, and hormone production. K2 ensures calcium is properly deposited in bones and not arteries.
How it works: Vitamin D enhances calcium absorption and may support natural testosterone levels. K2 directs calcium to the bones, preventing arterial buildup.
Why you need it: Many people—especially those in northern climates or with indoor lifestyles—are deficient. Low vitamin D is linked to reduced strength, energy, and mood.
Study: Pilz et al. (2011) found a correlation between low vitamin D levels and impaired muscle function and testosterone production.
Our Favorites:
Thorne Vitamin D/K2 Liquid – Easy to dose, highly bioavailable.
Sports Research D3 + K2 Softgels – Effective combo in convenient softgel form.
5) Electrolytes
What it is: Electrolytes (sodium, potassium, magnesium, and calcium) are minerals that help regulate hydration, muscle function, and nerve signaling.
How it works: When you sweat—especially during intense workouts or in hot weather—you lose electrolytes. Replenishing them helps prevent cramping, fatigue, and performance drops.
Why you need it: If you're doing fasted cardio, extended sessions, or sweating heavily, you need to replace what you're losing. Water alone won’t cut it.
Study: Sawka et al. (2007) highlighted that electrolyte imbalance impairs both physical and cognitive performance.
Our Favorites:
LMNT Electrolyte Drink Mix – No sugar, high sodium, keto-friendly.
Nuun Sport Tablets – Mild flavor, easy to travel with, clean ingredients.
Final Thoughts
Supplements aren’t a shortcut, but they’re powerful tools when used intelligently. These five are foundational — not just fads. They’re backed by science, widely recommended, and proven to support muscle growth, recovery, and overall performance.
Always consult your healthcare provider before starting any supplement routine. And remember: no supplement can outwork a poor diet, bad sleep, or inconsistent training.
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Stay strong, stay informed. #FormulatedFit
Resources
Tang, J. E., Moore, D. R., Kujbida, G. W., Tarnopolsky, M. A., & Phillips, S. M. (2009). Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and after resistance exercise in young men. Journal of Applied Physiology, 107(3), 987–992. https://doi.org/10.1152/japplphysiol.00076.2009
Kreider, R. B., et al. (2003). Effects of creatine supplementation on performance and training adaptations. Molecular and Cellular Biochemistry, 244(1–2), 89–94. https://doi.org/10.1023/A:1022469320299
Smith, G. I., Atherton, P., Reeds, D. N., Mohammed, B. S., Rankin, D., Rennie, M. J., & Mittendorfer, B. (2011). Omega-3 polyunsaturated fatty acids augment the muscle protein anabolic response to hyperinsulinaemia–hyperaminoacidaemia in healthy young and middle-aged men and women. Clinical Science, 121(6), 267–278. https://doi.org/10.1042/CS20100597
Pilz, S., Tomaschitz, A., März, W., Drechsler, C., Ritz, E., & Zittermann, A. (2011). Vitamin D, cardiovascular disease and mortality. Clinical Endocrinology, 75(5), 575–584. https://doi.org/10.1111/j.1365-2265.2011.04147.x
Sawka, M. N., Burke, L. M., Eichner, E. R., Maughan, R. J., Montain, S. J., & Stachenfeld, N. S. (2007). American College of Sports Medicine position stand. Exercise and fluid replacement. Medicine & Science in Sports & Exercise, 39(2), 377–390. https://doi.org/10.1249/mss.0b013e31802ca597