That line is a classic clickbait-style health claim — it’s designed to spark curiosity, not to give clear or reliable information.
Without knowing what “it” is, the claim is meaningless. Different drinks can have very different effects on your body over 13 days:
- If it’s water → you’ll stay hydrated, maybe feel better if you were dehydrated before.
- If it’s something like green tea or lemon water → mild benefits (hydration, antioxidants), but nothing dramatic.
- If it’s a detox drink or extreme cleanse → likely exaggerated claims; your liver and kidneys already handle detoxing.
- If it’s something unsafe (high sugar, unregulated supplements, or “miracle” mixtures) → it could actually harm you.
The “13 days” part is also a red flag. Real physiological changes don’t follow neat, viral timelines like that.
If you want, tell me what specific drink you saw in that post, and I’ll break down what it actually does in your body — no hype, just facts.