Supplements Fact Check: What Is Actually Worth It?

The choice of supplements is vast. What is actually worth it? Many products promise quick results. The evidence shows: quite a few of these are unnecessary when the basics are in place. A high-quality protein with a complete amino acid profile and a balanced diet cover more than most people think.

What does current research say about the most popular supplement categories?

Do You Need BCAAs and EAAs?

No, according to a review article (Wolfe, 2017), the claim that BCAAs alone stimulate muscle protein synthesis is unwarranted. They exist as add-on products because many protein powders have a poor amino acid profile. A clean protein powder makes both redundant.

BCAAs (Branched-Chain Amino Acids) are three amino acids: leucine, isoleucine, and valine. EAAs (Essential Amino Acids) comprise all nine essential amino acids. Both are sold as standalone supplements, often in powder or capsule form.

Why they exist at all: Many protein powders on the market have an incomplete or low-quality amino acid profile. To compensate, manufacturers sell BCAAs or EAAs as an additional product. This is a business model, not a genuine need. Instead of improving the base product, a second one is sold.

Wolfe (2017) explained in a review article in the Journal of the International Society of Sports Nutrition: when only BCAAs are consumed, the remaining essential amino acids needed to build new proteins can only come from the breakdown of muscle protein.

The solution is simple: buy a clean protein powder with a complete amino acid profile. Then you need neither BCAAs nor EAAs on the side.

Is Glutamine Worth Supplementing?

No, glutamine supplements are unnecessary for healthy, well-nourished individuals. The body produces glutamine on its own, and protein-rich foods supply it in abundance. Glutamine is frequently marketed as a supplement for athletes.

Candow et al. (2001) examined the effect of glutamine supplementation in healthy adults during resistance training in the European Journal of Applied Physiology. The result: no significant effect on muscle performance or body composition compared to the control group.

The reason is straightforward: glutamine is the most abundant amino acid in the human body. The body produces it on its own, and protein-rich foods supply it in abundance. An additional supplement is simply unnecessary for healthy, well-nourished individuals.

Are Vitamin Gummies a Good Choice?

No, vitamin gummies contain 2-8 g of sugar per serving and are often underdosed. Natural sources like camu-camu powder are the better alternative. Vitamin gummies look like sweets, and that is essentially what they are. Per serving, they contain 2 to 8g of sugar. The active ingredients are often underdosed because the gummy matrix leaves less room for active compounds.

If you want to seriously supplement vitamin C, there are better options. Natural sources like camu-camu powder deliver 170mg of vitamin C per 2g serving (213% of the reference intake). No added sugar (contains naturally occurring sugars), no gelatine.

Conclusion

Less is often more. Focus on the supplements with the strongest evidence. Better to take a few well-researched products than to fill a cupboard with bottles of questionable data. Look for transparency, complete ingredient lists, and scientific backing.

Sources:

• Wolfe RR (2017). Branched-chain amino acids and muscle protein synthesis in humans: myth or reality? Journal of the International Society of Sports Nutrition, 14, 30. DOI: 10.1186/s12970-017-0184-9
• Candow DG, Chilibeck PD, Burke DG, Davison KS, Smith-Palmer T (2001). Effect of glutamine supplementation combined with resistance training in young adults. European Journal of Applied Physiology, 86(2), 142-149. DOI: 10.1007/s00421-001-0523-y