Supplements Beyond Protein and Creatine: What's Actually Worth Taking

Protein powder and creatine have the evidence to back up the shelf space they take up. Everything next to them — pre-workouts, BCAAs, fat burners, a dozen branded blends — is a much bigger mix of genuinely useful and mostly useless, and the labels rarely make it obvious which is which.

Written by Velion Physique. I have done nutrition coaching since 2019, alongside working as a personal trainer and group fitness instructor.

What is actually happening

Supplement evidence exists on a spectrum. A small number of ingredients — caffeine, beta-alanine, citrulline malate — have reasonably consistent research behind specific, modest effects in specific situations. A much larger number of ingredients either have weak, inconsistent evidence, or only show a benefit in people who are deficient in something they'd otherwise get from food.

The common thread with almost everything in this second group is that supplements can only add to a foundation that's already solid. If total protein, calories and training consistency aren't already in place, no ingredient on this list will make up the difference — and once those fundamentals are solid, most of what's left to gain from supplements beyond protein and creatine is genuinely small.

Supplement	Evidence level	What it actually does	Worth it?
Caffeine	Strong	Modestly improves performance and focus	Yes, if tolerated well
Beta-alanine	Moderate	Helps in 1-4 minute high-effort work	Situational
Citrulline malate	Moderate	Small pump/endurance effect for some	Optional
BCAAs	Weak, if protein is adequate	Little beyond what whole protein already provides	Usually not
"Fat burners"	Weak to none	Mostly stimulants; no meaningful fat-loss effect on their own	No
Multivitamin	Situational	Fills gaps only if diet actually has gaps	Depends on diet

What actually helps

Caffeine is the most reliable performance supplement after creatine

A moderate dose 30-60 minutes before training has consistent evidence for improving output and focus. It's also cheap, widely available, and easy to titrate to tolerance.

Beta-alanine helps in the 1-4 minute effort range, not for strength sets

It buffers the kind of fatigue that builds up over sustained high-intensity effort — think a hard set of 15-20 reps or short intervals — rather than a heavy 3-rep set, where the limiting factor is different.

Skip anything that won't name its doses

Proprietary blends that hide exact amounts behind a total milligram figure are a reliable sign the individual doses are too small to matter, or the formula wouldn't hold up to comparison against cheaper standalone ingredients.

Fix food and sleep before adding a fourth supplement

Almost everything on the "worth it" list assumes protein intake, total calories and sleep are already handled. If any of those are inconsistent, that's a bigger lever than anything left on a supplement shelf.

Common questions

Are BCAAs worth taking if I already eat enough protein?

Generally no. BCAAs are a subset of what complete protein sources already provide, so if total protein intake is adequate, a separate BCAA supplement adds very little on top.

Do fat burners actually work?

Most rely on stimulants for a temporary metabolic bump too small to matter without an actual calorie deficit doing the real work. Nothing sold as a fat burner replaces that deficit.

Is a multivitamin necessary if I eat well?

If your diet already covers a wide range of whole foods, a multivitamin mostly duplicates what you're getting. It's more useful as a low-cost safety net for people with a narrower or less consistent diet.

What supplement should I add first after protein and creatine?

Caffeine, if you don't already get enough from coffee or tea, is the next most consistently useful option for most people. Everything past that is more situational.

The short version

Beyond protein and creatine, caffeine has the next-strongest case, beta-alanine and citrulline are reasonable for specific types of training, and most of the rest — BCAAs, fat burners, unnamed "blends" — add little once the basics are covered. Food and sleep are still the bigger levers.

The High-Protein Cookbook makes those fundamentals easier to hit consistently, and the Ultimate Fat Loss Blueprint covers the calorie side properly rather than leaning on a fat burner to do that job.

Related: see creatine explained and micronutrients and muscle.

Everything in this area is in Nutrition.