The personal training industry has almost no quality floor. Anyone can call themselves a coach. The credentials that exist are mostly weekend courses. The result is that the work varies enormously, and most people hiring a coach have no way to evaluate quality before they've spent thousands of dollars.
Here are the things I would walk away from, said plainly.
1. The program never adjusts
If your coach sent you a program at the beginning and it has not been meaningfully revised in 8 weeks, you do not have a coach. You have a program seller. The whole reason coaching costs more than a $30 program PDF is that the coach is supposed to look at your data, your feedback, your life, and adjust. If they aren't adjusting, you are paying premium for a generic product.
Red flag: Just keep running the program. It's working. Translation: I haven't actually looked at your data.
2. They never measure anything
A real coach takes a baseline. Body weight, body fat estimate, strength benchmarks, movement screen, a few photos. Then they remeasure at intervals — every 4 to 6 weeks. The data is what makes the work iterable.
If your coach has never asked you for any objective measurement and the work has been going on for months, the work is not being measured. It is being vibed. Vibes are unreliable.
3. The check-ins are one-way
Good check-ins go both directions. You report data and how the week felt. The coach responds with specific feedback, specific adjustments, specific questions.
If your check-ins are you sending a video and getting back looks great, keep going — that is not a check-in. That is a one-line ack. The next week's program should be different from the previous week's program in some specific way that came from your feedback. If it never is, you don't have a coach.
4. They sell you supplements
This is one of the most reliable signals of a bad coach in the industry. Supplements have higher profit margins than coaching, and a depressing number of trainers have figured out that they can supplement their income (no pun intended) by upselling protein powders, fat burners, and unregulated stimulants to their clients.
The right amount of supplement-pushing from a coach is approximately zero. Creatine and protein powder are commodities — your coach has no special insight into which brand you should buy. Anyone telling you their specific stack is the secret sauce is selling you something. Walk.
5. They talk more than they listen
Coaching is, structurally, listening. The coach gathers information. They process the information. They make small adjustments. The client does most of the work and most of the talking.
If you walk out of every session having mostly been talked at, the work is not personal to you. It is the coach's standard speech, delivered to a different audience this hour. Compare against the test: at the end of the engagement, does the coach remember details about your life that you didn't have to remind them of? If not, you were never coached. You were lectured.
6. They promise specific outcomes
You will lose 20 pounds in 12 weeks. You will be down two sizes by your wedding. You will hit a 400-pound deadlift this year.
No competent coach promises these things. The reason is that the outcomes depend on a thousand variables most of which are out of the coach's control — your sleep, your stress, your hormonal context, your job, your relationships, your willingness to do the work in the gaps between sessions. A coach who promises a specific outcome is either inexperienced or dishonest. Both are reasons not to hire them.
What competent coaches promise is process. I will adjust your program based on your data every two weeks. I will hold you accountable to the things you've committed to. I will tell you the truth even when you don't want to hear it. These are promises a coach can actually keep.
The reverse test
Good coaches share a few common traits. They ask more questions than they answer. They are comfortable saying I don't know when they don't know. They reference your specific situation, by name, in their advice. They have opinions and they defend them when challenged, but they update them when the data calls for it.
If you find a coach who has these traits, you have found something rare. Hold onto them. Even if they cost more than the alternative. They will be worth more than the alternative.