Fitness and supplements is the category with the most competition and the least credibility. The audience has seen everything, distrusts everything, and that is exactly why honest UGC outperforms advertising production.
What actually converts
Real progress, with a stated timeframe
"Eight weeks, three times a week." Without a timeframe, the transformation looks fake.
The usage routine, not the result
When they take it, how they prepare it, what it actually tastes like. Taste is the number one objection in supplements and almost nobody addresses it.
The ordinary person
Not the athlete with abs: someone starting out, training in a normal gym, with a recognisable body.
The price objection
"I thought it was expensive until I worked out the cost per serving."
The testimonial from someone who quit and came back
It sounds bad in theory and it is one of the best converting formats.
What cannot be said
This is the critical part of the category. Claims about curing, treating illness or guaranteed results are regulated, and the legal risk sits with the brand.
Put an explicit list of forbidden phrases in the brief, and another of acceptable formulations. A creator saying "it cured my anxiety" on camera can cost you an entire campaign and more.
Also ask for the packaging with the nutritional information visible at least once.
Which creators to hire
People whose starting point resembles your customer's. A beginner protein brand that hires only fitness competitors signals that the product is not for the audience it wants to reach.
Look for variety in age and level. A forty five year old man starting to train converts an audience no twenty year old athlete reaches.
The brief that produces good material
Include: how the product is used, at what moment, what the main objection is, three suggested hooks and the list of forbidden claims.
The Argentine calendar
January and February are the absolute peak, driven by new year resolutions and the beach season. March, with the return to routine, is second. Winter is slower and it pays to communicate consistency rather than fast results.
Where to go next
In fitness, credibility is worth more than muscle. Our complete UGC guide for brands explains the rest of the process.



