I saw her in an interview on Diary of a CEO on YouTube. I have not read her books or seen her other interviews. She is new to me. In that Interview she made consistent disclaimers about her own studies of groups. When she was referring to formal research by others she convinced me that she was seeking ways to illuminate the conclusions and present in ways that helped us understand the what and why's and offer simple and easily understandable steps (hooray) to use. I've seen and read materials that have addressed the glucose issue before. I found her approach appealed to me. But I don't have the background to really comment on your question. I really rambled. What do you think?.

I'm sorry to say that with diabetes, as with almost every other chronic disease, there is no "magic bullet" or one and done way to get control. I am fortunately blessed to have been bypassed by diabetes so far, but have lung, heart, inflammatory and pain issues that clamor for my attention every single day.
Looking at the Glucose Goddess Website, she cited over a dozen research studies - NONE have her name on them, nor her product in them. Can you cite her research specifically, because I could not find any on Google or in Google Scholar.

It seems she is more of a medias sensation than a scientist -
https://www.washingtonpost.com/style/of-interest/2024/08/07/glucose-goddess-jessie-inchauspe/
Her "bio" as a biochemist? "She attended graduate school at Georgetown University, where she earned a master’s degree in biochemistry, and worked as a product lead at 23andMe (they sell gene testing kits)"

Keep in mind, any studies she talks about are very small, may or may not meet basic research criteria, and may not have been conducted on people with diabetes.

What do the health researchers say? "Priya Tew, a specialist dietitian from the United Kingdom, says the supplement is unregulated and untested. While there is some evidence for some of the individual herbs, these have not been tested as a mixed supplement.
The evidence we do have is very low grade; a lot of it is small-scale studies and short-term research. The supplement is making claims that have not been properly tested, and we do not know the long-term impact of taking this," she tells Healthnews."
(https://healthnews.com/news/you-dont-need-supplements-to-reduce-glucose-spikes/)

Better to follow the plan suggested by Cheryl (@cehunt57) who has lived with diabetes her whole life. Tedious? You bet, EVERY day, proper diet, exercise, monitor glucose and medicate as needed.

What is your current management routine?