Does liquid chlorophyll help you lose weight?

Where the claim came from

A 2014 Swedish study is the one that gets cited. Overweight women took a "green-plant membrane" supplement (thylakoids) alongside their meals, and over three months the group lost a little more weight than the placebo group. TikTok compressed that into "chlorophyll makes you skinny."

Why it doesn't translate to the drops

• The study used thylakoid membranes — a concentrated green-plant extract — not the liquid chlorophyll (chlorophyllin) you mix into water.
• The proposed mechanism was slowing digestion and nudging fullness hormones, which is not what a few drops of chlorophyllin in a glass of water does.
• It was one modest study. It has not been replicated into a reliable "chlorophyll causes weight loss" finding.

What's probably really happening

If people feel like chlorophyll water helps them eat less, the most likely reason is simple and unglamorous: they are drinking a large glass of water before or with meals, which can blunt appetite a little, and often cleaning up the rest of their diet at the same time. That is the water and the habit doing the work — not the pigment.

The honest takeaway

Liquid chlorophyll is a nice-tasting green drink and a fine way to make yourself drink more water. But there is no reliable evidence it burns fat or drives weight loss on its own, and we are not going to tell you otherwise. If weight is your goal, the boring fundamentals — food, movement, sleep — are still what move the needle.