Maximum fat gain in 5 days

I am planning on having a 5 day break where I eat whatever I want after losing a good amount of weight in 2 years. What is the most fat the human body can gain in 5 days? I'm talking about pure fat, not water weight.

Some people say it's an unlimited amount, but I'm not sure. Can someone who's knowledgeable enlighten me? Is there a hard cap on the amount of calories that can be turned into fat in such a short amount of time?

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u/xicor19 — 12 days ago