Interesting. But not inexpensive. Cheapest I can find is about $23 for a 10 day supply. IF it works.
From Costco.com, 45 grams a day of “Optimum Nutrition Gold Standard 100% Whey Protein” would last nearly 57 days at a cost of $1.11/day ($62.99 a bag).
I know that stuff tastes pretty good, too.
Not that I order any supplements/food type items, from Amazon...but....here is one that has 26 grams/serving....with roughly 50 servings (at 15 gr/svg)....for $35 ... that’s about .70¢/serving (fuzzy math, of course :)
https://www.amazon.com/Protein-Isolate-BulkSupplements-kilograms-Unflavored/dp/B00E7IODXQ
Metamucil (sugar free) does the same. Not many know about it, Even some doctors seemed surprised when told. Works for hubby. T2 controlled for several years. I think the dr put him on Metformin first but that one is not good. Gone up in price, but large amount seems cheaper than this.
Jarrow brand whey will last you for months for 20 bucks.