CREF and Supplement Sales: What PT Can and Cannot Do

The fear of losing registration is one of the biggest psychological brakes when a personal trainer thinks about monetizing supplementation. “Can I?”, “Are they going to fine me?”, “Is this a nutritionist thing?” — doubts hinder a completely legal business model when done with discretion.

This article breaks down what CREF regulates, what is outside its jurisdiction and how you can recommend and receive supplements without any real risk of sanctions.

What CREF really regulates

Direct answer: CREF regulates the exercise of the profession of physical education — that is, the prescription of physical exercise, physical assessment and related activities. Food supplementation for general use (non-therapeutic) is not an activity exclusive to any profession in isolation and can be guided by those with technical competence, within ethical limits.

Law 9,696/1998 and the Code of Ethics for Physical Education Professionals (CONFEF Resolution 307/2015, with updates) define what an exclusive assignment is. None of these texts say that the PT is prohibited from talking about supplements. What they say is that PT cannot invade the clinical terrain of other professions.

Why this fear is so common — and why it’s blown out of proportion

Most PTs have heard “this is a nurturing thing” from a colleague in the locker room. Rumor became dogma. But in practice, what generates ethical processes at CREF are specific and nameable behaviors — not the simple act of recommending whey or creatine to a student.

A quick search of regional CREF opinions shows that sanctions for supplementation involve, almost without exception, one or more of these behaviors:

1. Prescribe supplements for clinical purposes (treating illness, anemia, diabetes)
2. Promise therapeutic result (cure, prevention of pathology)
3. Present yourself as a nutritionist or doctor
4. Make false advertising (fraudulent before/after, “secret formula”)
5. Selling illegal product, without Anvisa registration, irregular import

If you don’t do any of these things, your professional risk is essentially zero.

The bright line: recommend vs prescribe

What is recommend (PT can)

• Saying that a supplement is part of what you use and guide your students
• Contextualize use (pre, post, training days)
• Indicate established reference dose (creatine 3–5g/day, whey 20–40g per dose)
• Compare types (concentrated vs isolated) in general plan
• Recommend brands that meet your quality criteria
• Receive commission for referral, with transparency

What is prescribing (PT cannot)

• Individualize dose to treat a condition (“for your anemia, take X”)
• Make a formal nutritional history with a dietary plan
• Adjust supplementation based on clinical laboratory tests
• Promise therapeutic effect (lose 10kg, cure tendonitis)
• Replace nutritionist guidance when the case requires

The difference is the purpose. Recommendation is general guidance in the context of performance. Prescription is an individualized technical act with the purpose of treating or preventing disease.

How to publicly position the recommendation (tested model)

A bio and content text that respects CREF and converts:

“Physical education professional (CREF XX). Here I recommend supplements as performance and recovery tools, within the limits of my profession. For individualized adjustments based on clinical condition, I recommend consultation with a nutritionist.”

This positioning:

• Identifies your competence (CREF)
• Delimits what you do (performance, recovery)
• Refers to another professional when appropriate (transparency)
• Protects you legally (documents that you know the limits)

Code of Ethics — what really counts

The most relevant Code of Ethics articles for those recommending supplements:

Art. 13 (and corresponding) — prohibits misleading, sensationalist advertising or advertising with a promise of guaranteed results. Practical translation: never promise a specific effect, never use “before/after” without context, never sell it as if it were a medicine.

Principle of technical competence — act within what you studied. Practical translation: if the student has a clinical condition (diabetes, kidney, pregnant woman), you refer them.

Principle of multidisciplinary work — recognize and respect other professions. Practical translation: nutritionist, doctor and pharmacist have skills that are complementary to yours, not rivals.

If these three pillars are respected, CREF will not bother you for receiving creatine commission.

Specific situations (locker room cases)

“What if the student asks what dose to take?”

Respond with an established reference dose, context of use and, if applicable, forward to a nutritionist if there is a clinical condition. “For training, 3 to 5g of creatine daily is the most studied range. If you have a kidney condition, it’s worth talking to a nutritionist first."

"What if the student is diabetic or hypertensive?”

For comorbidities, refer. You can continue training, but more technical supplementation is carried out by a qualified professional. This protects the student and you.

”What if the brand offers me a high commission in exchange for advertising without reservations?”

Refuse. Unqualified advertising when there is a commercial relationship is unethical (and, for public figures, may fall under CONAR). Transparency is non-negotiable.

“What if I face an ethical process for recommending a supplement?”

This almost never happens if you have followed the principles above. If this happens, hire a lawyer specialized in professional ethics (almost always resolved with a formal defense showing the context and the absence of a clinical prescription).

Errors that generate real risk

Wearing a lab coat in stories talking about supplements — simulates a clinical figure and induces confusion between professions.

Promising specific results (“you will lose 8kg in 60 days with this stack”) — false advertising, risk in CREF and consumer agencies.

Make an individualized meal plan — private assignment from a nutritionist. Even if the student asks, you forward it.

Recommend product without Anvisa registration — health and reputational risk. Minimum curation criteria must include active registration.

Omit the commercial relationship — ethical (transparency) and legal violation (CONAR, CDC). Always say when there is a commission.

How Curated Storefront Solves 90% of Risk

When you use a platform like Mega Suplementos to generate commission, several responsibilities are not in your lap:

• The sale is made by the platform (not by you)
• Delivery and customer support are from the platform
• Health issues (Anvisa, reports) are the responsibility of the platform and the brand
• The invoice for the sale to the consumer comes from the retailer, not from you

It’s up to you to do what’s your responsibility: choosing serious brands, communicating ethically, respecting the scope of physical education. The showcase transforms the “selling on your own” model into “recommending and receiving referrals” — a huge difference from the point of view of professional risk.

Key Takeaway Points

• CREF does not prohibit recommendation or sale of supplements by PT
• The clear line is: performance recommendation can, clinical prescription cannot
• Misleading advertising and false professional identity is what generates real sanctions
• Transparency about commission protects you ethically and legally
• Curated showcase on a partner platform drastically reduces the risk left with you

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Additional reading:

• Monetization for fitness professionals in 2026: the definitive guide
• Transparency about commission: script that increases conversion
• How to create authority in supplementation without being a nutritionist

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Do you want to structure your referral income respecting CREF, ethics and your reputation? Mega Suplementos takes over the retail part so you can only act on what is within your competence — get on the waiting list.