Supplements for weight loss, in order.

Here's how I'd think about these three, because they're not doing the same job. Caffeine (8.8, 100-400mg) is your workhorse. It nudges metabolism up and dials appetite down, and it works for most people who take it. Start at the low end and see how you feel before climbing. Green Tea Extract (8.3, 250-500mg EGCG) plays a similar metabolic role with a gentler push, and it's a smart pick if straight caffeine leaves you jittery. Fiber as glucomannan (8.1, 1-3g before meals) is the odd one out, and I mean that as a compliment: it works mechanically, swelling in your stomach so you eat less at the meal that follows. That makes it a genuinely different lever, which is why some people stack it alongside a stimulant. If you want one, start with caffeine. If stimulants aren't your thing, glucomannan is the better first move. Honest caveat: none of these replaces the actual work. The scores reflect how well each does its narrow job, not a shortcut around diet and movement. Expect a modest edge, not a transformation.