No worries, just wanted you to be aware. I know many people don’t know there is any difference between dieticians and nutritionists.
I’m sure there are many nutritionists that are very skilled at what they do, and who take a lot of care to get it right. I also don’t think that a formal education or certificate is necessary to be good at what you do, self education of a great thing. Sadly though I expect the majority of nutritionists fall short of acceptable from what little I have seen, and I have seen a lot of people who call themselves nutritionists giving incredibly poor and even scarey advice.
Any title that can be obtained simply by waking up one morning and deciding you want to now be called that thing should be looked at skeptically at the very least. I could update my email sig or Facebook page and viola, I’m suddenly a professional nutritionist.
As a professional representative for your company I do think you may be better served by a dietician. It would lend your company a better, more trustworthy and professional image and may put some at ease that would not have tried your products otherwise.
Whoever you choose I wish you both well. Good luck.