Question: how much weight will i lose if i only eat 300 calories a day?
Answer: To give you an idea, it is possible to lose about 500–750 grams of fat (not just weight) each week with a scientific plan. This means about 2–3kgs a month and 6–9kgs in 3m. That is a lot and very doable. And most importantly, if you do it right - you'll feel better each week, not worse.