If your olive oil came from a factory in China and the bottle said "premium extra virgin," you'd be furious. Your D-Mannose comes from a factory in China and the bottle says "premium bladder health." Nobody's furious. Because nobody knows. Food has origin labeling laws. Supplements don't. That single gap is why 90% of the D-Mannose in this country can be corn starch converted in Shandong Province and sold to you at $40 a bottle without one word about where it came from. Here's the other 10%. ▶️
Not enough history yet to show a trend.