A before-and-after photo is not proof of anything. Lighting, posture, and a few weeks of normal water-weight change can produce that same "transformation" with no pill involved at all. It's the cheapest kind of evidence to fake and the hardest for a shopper to check.
When we buy stock wholesale, we ask for specifics before we commit: which harvest, which lot number, which grading standard the batch was checked against. A supplier who can't answer those questions doesn't get the order, no matter how good the sample looks. Apply the same standard to a "fat loss" product and most of them fail immediately — no named study, no stated dose, no way to trace the claim back to anything real.
That habit of asking "where does this number come from" carries over well to grocery shopping too. A pack of dates that states variety, origin and harvest year gives you something to check. A supplement page that just says "clinically tested" without naming the test gives you nothing to check at all — which is usually the point.
None of this means whole food is a substitute for a pill's claims; it means whole food doesn't need to make claims in the first place. A date is a date. What it contains doesn't change based on how convincing the marketing is.
Buy the thing you can verify. If a seller, wholesale or retail, won't show you where a product or a number came from, that's the actual answer to whether it works.