Free shipping to AU · USA · NZ · UK 90-day money-back guarantee Cancel or pause anytime Australian made, batch tested Free shipping to AU · USA · NZ · UK 90-day money-back guarantee Cancel or pause anytime Australian made, batch tested Free shipping to AU · USA · NZ · UK 90-day money-back guarantee Cancel or pause anytime Australian made, batch tested

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4.8 stars 2.1K reviews 500K+ members

“More protein, more muscle.” You don’t build muscle in the gym. You build it in the 48 hours after.

Training creates the signal recovery decides how much of it you keep. Miss the window and the session was mostly wasted. 7 things that decide whether your training turns into muscle, and where one sachet fits.

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A lean, athletic woman in cream activewear laughing in golden afternoon light against a warm cream wall, holding a tall glass of chocolate OneFit shake, with a OneFit sachet on the stone ledge beside her
For people who train 91% reported more visible muscle definition 12-week controlled study, 750+ users
01

Not the reason you fall short

Training sets the demand. Protein is the supply, and neither one makes up for the other. OneFit gives you 25g of supply every day, so protein’s never the reason you fall short.

The material, and the instruction: on one side of a split photograph, a OneFit sachet and a glass of chocolate shake on a sunlit kitchen bench; on the other, a loaded barbell on a gym floor
02

Skipped days add up faster

Muscle responds to hitting your numbers every day, not to one big effort a week. Most people don’t fall short because the target’s too high. They fall short because a rushed day turns into a skipped one, and skipped days add up fast. OneFit makes the daily number simple enough to hit anyway.

5/7 days: a hand holding a tall glass of chocolate shake on a sunlit kitchen counter

OneFit® is one 35g serve at 100 calories, taken once a day.

03

The part you can always get right

Training sets the demand, and some sessions go better than others. Protein is the side you fully control, every single day. 25g of hydrolysed collagen protein from OneFit, after you train, is the part you can always get right.

25g. A OneFit Chocolate Milkshake sachet standing beside a black dumbbell on warm stone in hard afternoon light
04

One more rep, not a feeling

OneFit’s creatine isn’t a hormone, and it isn’t a stimulant, so you won’t feel it working. Your muscles store it and use it to refuel every rep. That’s the whole job, which is why the result is one more rep, not a feeling.

5g creatine. Chalked hands locked on a barbell at the top of the last rep, in a gym full of late-afternoon light
05

The only number that matters

5g a day is creatine’s real, established dose, and it’s what OneFit gives you every serve. Most blends carry only a fraction of that, just enough to put the word on the label. Check the number per serve. That’s the only one that matters.

Dose compared, side by side on warm stone: a 1g pinch of creatine barely covering the bottom of one dish, beside a heaped 5g scoop in another
06

Not protein alone.
Not creatine alone.

Not protein alone. Not creatine alone. OneFit is both, plus the electrolytes and micronutrients hard training burns through. One sachet. 100 calories. Once a day, after you train.

One. A single OneFit Advanced Multi-Supplement sachet standing in hard afternoon light in front of the five bulky, unlabelled black supplement tubs it replaces

One 35g serve: 25g protein, 5g creatine, 1g L-Carnitine, 1g electrolytes and 16 vitamins and minerals, at 100 calories and 0g sugar.

07

Definition starts showing by week 8

Week 4 on OneFit, strength climbs and recovery keeps pace. Week 8, definition starts showing in the waist and face. Week 12, the difference is clear and energy stays steady. Individual results vary and depend on training, diet and consistency.

Week 4, week 8 and week 12 side by side: the same man photographed three times against the same cream wall, growing steadily leaner and more defined from left to right

Week 4: strength climbs, recovery keeps pace. Week 8: waist and face lean out. Week 12: definition is clear, energy steady.

Your entire stack.
One sachet.

  • A man at a kitchen table pouring a OneFit Advanced Multi-Supplement Chocolate Milkshake sachet into a glass of water
  • What 750+ OneFit customers experienced: 91% more visible muscle definition, 98% felt leaner in waist, face and overall, 87% less bloat and calmer gut, 62% clearer head and energy
  • 12-week clinical results. Real body composition changes: one member photographed before and after, marked +2.4kg lean muscle, 9% strength gain and −5.4% body fat
  • A OneFit sachet being slipped into the side pocket of a pair of leggings
  • A OneFit Chocolate Milkshake sachet being poured into a glass of water
View the full supplement facts

31 ingredients in 1 sachet

  • 25g hydrolysed collagen protein for lean mass and recovery
  • 5g European creatine monohydrate for strength and training output
  • 1,000mg L-Carnitine for turning fat into energy
  • 1g quad-electrolytes & 20bn CFU probiotics for hydration and a settled gut
  • 13 vitamins & minerals at 100 calories and 0g fat, in one 35g sachet

500,000+ members 2.1K reviews

OneFit®: 31 ingredients.
One sachet.

31 post-workout essentials in a single 35g serve, built around lean mass and the strength that carries it.

1 · Choose your format
2 · Choose your flavour

Don’t love it? Swap flavours within 24 hours, guaranteed.

3 · Pick your supply
Your selection
Price
Works out to
  • 90-day money-back guarantee
  • Free shipping to AU · USA · NZ · UK
  • Australian made, batch tested

Prices in AUD · Final price and offers confirmed at checkout.

Save money and time, with all eight essentials in one place.

The same eight things, bought separately, every month.

The OneFit Chocolate Milkshake carton with single-serve sachets and a prepared chocolate milkshake saved a year,
roughly

If you bought them individually

  • Protein powder79
  • Creatine49
  • Electrolytes39
  • L-Carnitine29
  • BCAAs29
  • Multivitamins59
  • Probiotics49
  • Magnesium39
Bought separately /day
OneFit®, 90-day supply /day
Annual saving, roughly /year

Indicative retail for eight comparable products bought separately. FON’s own published basket figure is $315/month; the eight line items above sum to $372/month, and the summary uses the lower of the two.

90-Day Money-Back Guarantee

“OneFit replaced six supplements I had in my cupboard…”

Jake R., Verified Member

Over 500k Happy OneFit Customers

A OneFit Chocolate Milkshake sachet being poured into a glass

Trusted daily by 500,000+ members.

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Excellent Trustpilot

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  • 500,000+members taking FON daily
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  • Every batchthird-party lab tested

Quality you can trust.Australian made, third-party tested every batch.

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4.8/5.0 rating · 2.1K reviews

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The questions everybody asks.

What actually builds muscle?

A training stimulus your body has to adapt to, repeated often enough, with enough protein and enough recovery for the adaptation to be paid for. Protein on its own does not build anything. It is the material the adaptation is built out of. That is why this page argues for the whole set rather than for one ingredient.

How much protein do I actually need?

Most guidance for people training for lean mass lands somewhere around 1.6 to 2.2g per kilogram of bodyweight a day. The exact figure matters far less than hitting a sensible one consistently, which is where most people fall short, not on the number itself, but on the days a meal gets skipped. 25g in one serve is a floor you can put under those days.

Do I need to load creatine?

No. Loading reaches saturation faster; taking 5g a day reaches the same place in about three to four weeks without the larger doses. Since OneFit is a daily serve, that is the route it takes. What matters is that you keep taking it. Saturation falls away when you stop.

Is creatine safe, and will it make me hold water?

Creatine monohydrate is among the most studied supplements there is, and 5g a day is the amount most of that research uses. It does draw water into muscle cells, which is part of how it works, so the scale can move early. That is intramuscular water, not fat. If you have a kidney condition or take prescription medication, speak to your doctor first, as you would with anything.

How much is in OneFit®, and how do I take it?

25g of hydrolysed collagen protein and 5g of creatine monohydrate per 35g serve: one sachet or one scoop, shaken into 300ml of water or a beverage of your choice. One serve daily.

When should I take it?

After training, ideally. Exercise acutely increases metabolic responsiveness, so that’s the most useful window. On rest days take it at the same time each day, because creatine works by staying saturated, so the rest days count. Daily consistency matters more than perfect timing.

Who is it for?

People who train at least a few times a week and want one daily serve covering protein, creatine, electrolytes, probiotics and micronutrients instead of managing four or more separate products. It isn’t a weight-loss product and it isn’t a replacement for meals.

How does it fit into a training programme?

It replaces the stack rather than adding to it. One sachet after training covers what most people were buying as four separate tubs. It does not change your programme, and it is not a substitute for one. The formula is built around lean mass and recovery, which is why 25g of protein sits beside 5g of creatine rather than either being sold on its own.

What if I don’t like it?

You’re covered by a 90-day full refund guarantee, and you can cancel or pause a subscription at any time. If it’s the flavour rather than the formula, the flavour promise lets you swap within 24 hours.

Why First or Nothing
No proprietary blends
Every amount is printed and verifiable. 5g of creatine monohydrate is on the sachet itself, not buried inside a blend.
Third-party lab tested, every batch
Not once at launch. Every batch, with results published.
Australian made
Premium ingredients, made transparently in Australia.
Versioned, not fixed
The formula is reviewed and updated as new science emerges. Currently supplying OneFit® v4.7.
No gums, oils or harmful additives
And nothing included at a dose too small to do anything.
Ingredients & allergens

Per 35g serve: hydrolysed bovine collagen protein, micronised creatine monohydrate, L-carnitine tartrate, BCAA 2:1:1, glycine, magnesium citrate, potassium citrate, sodium chloride, turmeric extract, Lactobacillus paracasei, plus 13 vitamins and minerals, natural flavouring and sweetener.

Gluten: nil detected. Plant-based options use pea protein in place of collagen. Not intended for children, or for anyone pregnant or nursing, without medical advice.

Science & testing

Third-party lab tested every batch, with results published. Made in Australia to premium ingredient standards. The formula is versioned and revised as evidence develops. The current supply is v4.7.

Doses are set at amounts intended to be meaningful rather than label-filling: 25g protein, 5g creatine monohydrate, 1,000mg l-carnitine and 1g of elemental electrolytes per serve.

Directions

Take one serve daily, after training. Blend or shake one 35g sachet (or one scoop) into 300ml of water or a beverage of your choice. On rest days, take it at the same time each day.

How to prepare OneFit: one sachet shaken into 300ml of water
Full supplement facts

Per 35g serve (1 sachet or 1 scoop), Chocolate Milkshake. 20 servings per package.

OneFit supplement facts per 35g serve
Energy420kJ / 100kcal
Protein25.0g
Fat, total0.1g
Carbohydrates0.5g (sugars 0.1g)
Creatine monohydrate5.0g
L-Carnitine tartrate1.0g
BCAA (2:1:1)1.05g
Glycine1.0g
Magnesium181mg
Sodium294mg
Potassium139mg
Probiotics (L. paracasei)20 billion CFU
Vitamins & minerals13, incl. B12 1100% DV, biotin 317%, vitamin E 230%

Percentage daily intakes are based on an average adult diet of 8700kJ. Batch tested between 100–105 calories.

Full supplement facts

Protein doesn’t build muscle.
It pays for the work you’ve already done.

25g of it in every serve of OneFit®, next to 5g of creatine monohydrate. One sachet, once a day, after you train.

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