For the sake of hopefully avoiding controversy, I’m going to begin with the conclusion. As with many questions, the actual answer is “maybe, it depends”. People tend to prefer black & white, yes & no, good or bad, blanket statement type answers… *shrug* sorrynotsorry if you’re disappointed.
The quality of advice should really be assessed on the basis of the quality of the advice, rather than the description of the person it comes from. Any specific individual trainer, bodybuilder, nutritionist, dietitian, or other person may give good advice or bad advice. We may observe that generally speaking, one profession is more or less likely to give solid, factual, reasonable and helpful advice than another… regardless, advice is good or bad based on how solid, factual, reasonable and helpful it is, not based on who it comes from.
Diplomatic enough for you? Everyone still happy so far? No one’s feelings hurt? Good. Let’s continue.
Now then. Let’s agree that it makes sense to assume we’re talking about people with a weight loss &/or fat loss goal. Who knows more about how to maintain lean mass and shed fat than a bodybuilder? Few if any.
Or so it would seem. Someone may have done a body building contest and achieved a lean condition under the instruction of their coach. Does that necessarily mean they understand how to assess another person’s requirements, understand their circumstances and coach them to a satisfactory outcome? Hardly. This is unfortunately a common, and problematic phenomenon especially related to instagrammers who get lean for a show or a photo shoot, and then start charging for “clean eating” meal plans and so forth. I would avoid anything of the sort like the plague.
So, let’s consider that particular variation of the question resolved. Should you follow dietary advice from a person on the sole basis that they’ve competed in a bodybuilding show, or are otherwise in impressive & athletic shape? Absolutely not.
What about bodybuilding coaches though? As with anything, it’s a mixed bag but I personally know a few who I’m confident are knowledgeable, competent, and usually have a few tricks up their sleeve that are more than merely starving and burning calories.
With that said, I’ll start my list of red flags with the following:
Do they understand that there’s a difference between “contest prep” and appropriate, sustainable eating habits & advice suitable for fat loss and more athletic condition in a normal person?
What might be necessary for and reasonably expected of people in the final stages of contest prep bares little resemblance to what’s reasonable or helpful advice for the rest of us who are looking for sustainable results towards a more athletic condition while actually enjoying the rest of our lives as well. If your coach doesn’t understand this, you’re in for a bad time.
Are they on the gear?
A lot of the times people will present their own physique or that of their clients as evidence to support their views on nutrition and the superiority of their understanding of science. That’s fair enough, but if they’re using steroids then all bets are off. I’d argue that differences in results between enhanced athletes are far more likely to be down to differences in dosage or choice of drugs than due to which carbs they feel are “clean” enough to eat. And if they’re on gear and talking about “discipline” and how people should want to do it the hard way rather than “cheating” with enjoyable foods on an IIFYM style approach, they can fuck right off as far as I’m concerned.
Bottom Line On Nutritional Advice
I’d ignore any advice from anyone that comes with the suggestion that adrenal fatigue or leaky gut are a concern you should have in mind with your dietary choices. I’d ignore any advice of the “calories aren’t equal” or “carbs are not equal” variety as well. Advice of the “this is what I did and it worked for me” nature is next to useless, and for advice of the “this is what everyone should be doing, even though it’s not actually working for me” variety it almost goes without saying.
Hmm what are some other red flags? “Sugar is addictive”, “fruit has too much sugar”, “artificial sweeteners will make you fat”, and any reference to Gary Taubes, Sarah Wilson, David Gillespie, or the various gluten fear mongers.
The best advice is based on the understanding that people have varying requirements, and unique circumstances, tastes, and idiosyncrasies which will determine what is reasonable to expect them to adhere to. Being expected to have the “willpower” or “discipline” to adhere to something that does not suit the individual is entirely unreasonable, and advice that fails to take this into account is inherently poor.
The approach and the selection of foods that best empowers and facilitates consistent adherence in meeting but not exceeding an appropriate provision of total energy from a suitable ratio of macronutrients is always what is best. Whatever approach that may be for each individual.
Whoever you go to for nutritional advice had best understand this, and ideally have both knowledge and experience in successfully coaching others to draw upon when issuing that advice.