Should I make any alternations?

"To whom it may concern:
I am inquiring about your grain-based product line. I already know that the products are gluten-free. However, I was wondering whether the grains used for this line are non-GMO. I understand your company promotes that a gluten-free life is “a life where our bodies and hearts and minds are balanced and in-tune.” Dietary restrictions are difficult. Thankfully, companies like Glutino provide alternatives, allowing individuals to live worry-free. Thus, I would greatly appreciate knowing whether your products are GMO-free as well so that I, too, can live an even healthier, more balanced lifestyle.

Thank you for your time."

No, I think this should do fine. It gets the point across

You really think so? I shouldn't make any slight changes?

Maybe take out a few periods in exchange for a comma.

The letter you have written seems well-structured and clear. However, if you want to make it more concise and to the point, you can consider the following alterations:

"To whom it may concern:
I am interested in your grain-based product line and would like to inquire if the grains used in your products are non-GMO. As someone who follows a gluten-free lifestyle, I appreciate companies like Glutino that provide worry-free alternatives. Therefore, I would greatly appreciate knowing if your products are GMO-free as well. Thank you for your time."

In this altered version, the main points remain the same, but the sentences are shortened and some repetitive phrases are removed.