SUPPLEMENTS
Everything FitChef knows about supplements.
Eight supplements. Hundreds of trials. The ones that work, and the ones that don't.
The synthesis
This is where it all comes together. One guide. Built from 9 verified claims. Backed by 8 analyzed studies.
The Supplement Sort: What Eight Research Teams Found When They Tested Everything on the Shelf
What the evidence says
We don't make claims. The studies do. We review them. 9 verified claims on supplements — each one traced back to the papers below.
The papers we actually read
Every claim above traces back to a peer-reviewed paper. No shortcuts. No cherry-picking. 8 studies analyzed on supplements.
Quick reads
Bite-sized, evidence-backed answers on supplements. Each one grounded in the studies above.
Garlic gets minced. Onion gets diced. Both go into the pan before the lentils, the rice, the beans. Not because a nutrition plan called for them. Because the dish tastes flat without them.
Protein powder has its own shelf in every supplement store, its own section in every gym bag, its own ritual in every post-workout routine. The industry built an entire product category around one premise: what you eat at the table cannot do what a powder in a shaker bottle can.
Raw garlic crushed on a cutting board releases a compound so sharp it stings the fingers and fills a kitchen in seconds. The smell is aggressive, almost medicinal. Under heat, that edge collapses. The sharpness folds into something sweet and roasted within a minute. By the time garlic reaches a plate, every trace of the raw bite has disappeared.
Every omega-3 dosing recommendation for muscle recovery lands somewhere between two and three grams of EPA and DHA per day. The conversation narrows from there: the ratio, the timing, whether to split capsules across meals.
Podcasts mention it between ad reads. Supplement labels hint at it. The idea that gut health shapes your workouts has settled into the kind of belief that survives without evidence — repeated enough that nobody stops to ask what it actually means. Ask what the connection is — not whether gut health matters for performance, but how — and the answer is nothing specific. You believe it. You cannot explain it.
Green tea extract is marketed as a metabolism booster on more supplement shelves than almost any other single ingredient. The catechins. The EGCG. The promise of a faster resting metabolic rate from something natural, gentle, practically medicinal.
Oxalates bind to iron in the gut. Spinach is loaded with oxalates. The conclusion writes itself: spinach iron is locked away, absorbed so poorly it barely counts. When this was measured directly — the exact amount of oxalic acid found in a serving of spinach, added to a controlled meal, iron absorption tracked with stable isotopes — the effect was zero.
Collagen improves what’s beneath the surface — the turgor, the tone, the moisture — rather than resolving the texture on top.
Drinking pickle brine to stop a muscle cramp sounds like locker-room folklore, until a controlled trial measured it and cramp duration dropped by nearly half, resolved in 85 seconds. The electrolyte theory everyone reaches for has a problem: that amount of liquid takes roughly 30 minutes to leave the stomach. The pickle juice hadn't reached the stomach when the cramp was already gone.
The evidence, by the analysis’s own conclusion, was too thin for physicians to make informed recommendations.
You know what frozen berries look like when they thaw. The bag sweating on the counter, juice bleeding purple through the plastic. The berries soft, collapsed — nothing like the firm glossy ones sitting in the clear clamshell at the store. One glance and your brain has its answer: you settled. The fresh ones looked alive. These look like they’ve been through something. So what happens when someone stops looking at berries and starts measuring them — taking fresh and frozen from the exact same harvest and putting both through a chemistry lab?
Most people steam or boil their broccoli somewhere between eight and twelve minutes. Tender, green, done. During those minutes, an enzyme inside the broccoli — the one responsible for producing the compound most of the health research is actually about — quietly breaks apart and disappears.
You know the feeling — the pre-workout kicks in, the fog lifts, and somewhere between your warm-up and your working weight, everything feels sharper. Dialed in. Switched on.
2,000%. The number follows turmeric everywhere — supplement labels, cooking blogs, golden latte recipes, all repeating the same line: add black pepper or the turmeric is wasted.
The raw material sits in every frozen bag with no converter to activate it.
The audience spending the most on supplements was getting the least from them.
What separates a meaningful gain from a statistical ghost is whether you gave the supplement something to work with.
Creatine is a daily supplement that got packaged into a pre-workout tub because the tub needed another name on the label.
The workout was helping your recovery. The pre-workout was taking it apart.
For most adults, the scoop is delivering a fraction of what the tub promises.
The headline ingredient on the label is strength. The headline finding in the evidence is recovery.
Your daily multivitamin was never insurance. It was the feeling of doing something responsible without checking whether the something worked.
Caffeine still works after daily use. It just works less.
Within twelve weeks, creatine can restore your muscles’ energy reserves to 85 to 90% of what they carried decades ago.
Your diet carries a 31 to 67% surplus of every essential amino acid. That surplus absorbs collagen's gaps comfortably.
Whey wins the three-hour race. The trouble is, muscle isn't a three-hour race.
The internet compressed 'DHT went up in 20 athletes' into 'creatine makes your hair fall out,' and the claim never stopped traveling.
The premium price buys better solubility in your shaker cup, not better results in your body.
The mirror runs on a longer schedule than the muscle.
A hundred and forty-three trials tested creatine. Every one supplemented daily — rest days included. No study has ever tested skipping.
Women build muscle at the same percentage rate as men — the gap on the scale exists because the starting line is different, not because creatine works differently.
The cup of coffee that wakes you up is the same cup quietly blunting your pre-workout.
Loading is not the engine. The daily dose is the engine.
8 studies → 9 verified claims → 1 flagship guides → 35 quick reads. Every link traceable. Every source cited.