PHGG or acacia fiber in small doses (3 to 5 grams) mixed into liquid can provide benefits without significant stomach volume
PMID: 32544852 16 Chronic Oral L-Carnitine Supplementation Drives Marked Plasma TMAO Elevations in Patients with Organic Acidemias Despite Dietary Meat Restrictions
that its product "Pai You Guo," a weight loss dietary supplement, contains undeclared drug ingredients
doi:10.1042/CS20100597 Tipton KD, Rasmussen BB, Miller SL, et al
It's not a protein because even though it's an amino acid chain, it's not considered protein, it's considered a small peptide, but it's most abundantly produced in human bodies
Be cautious with anything marketed as a hormone balancing weight loss supplement, since those can interact with medications and rarely address the root problem