Hello Lillian Dilts,
We get what we pay for and you will want to decide how much nutrition education you want to offer. That should help you decide how much and which certification or education of nutrition to learn. Please keep in mind what the scope of practice is with each avenue you are researching.
Natalie aka NAPS 2 B Fit.
It may be difficult to answer your question based on little information. Since the scope of practice and liability becomes important here with regard to how much nutrition information a trainer can give. Specifically what do you plan on offering your clients in the way of nutrition? If you are opening a personal training facility, will you offer basic coaching or general nutrition guidelines? You may be able to do some basic nutrition guidelines with a nutrition or health coaching certification (for example, ACE has a Health Coaching Certification for adults that is very good). Or, more specific meal planning? That should require a Registerd Dietician.
They are very different avenues and require different levles of education, so it may help to elaborate on what services you plan to offer.
I would suggest a basic intro textbook to nutrition which will teach the basics which most everyone needs in my opinion. Certified Nutrition certifications don’t mean anything in terms of liability and the only reason to have one is for marketing. If you go out of your scope with a “nutrition certification”, liability still applies dependent on what state you live in.