It depend on how much you eat in a day but minimum2-3 days
Cyprohheptadine
Have a malted milkshake every other day until you've gained 5 pounds. It won't take long.
Each person varies with how long it will take to lose 30 pounds. On average, a person can lose around 2 pounds per week. It would take 3.75 weeks to lose 30 pounds with diet and exercise.
Seriously there is no way to do that. A starvation diet would result in severe health problems. You realize that amounts to over 2 pounds a day? How long did it take to gain that 40 pounds? Probably well over two years.
Alot longer than it would take you to excersise it off.
Five to ten weeks. 500 cal per day equates to one or two pounds per week. This is a safe amount to lose/gain.
12 years.
The time it takes to gain 20 pounds varies depending on factors like diet, exercise, metabolism, and individual goals. Generally, a safe and sustainable rate of weight gain is about 0.5 to 1 pound per week. Therefore, it could take anywhere from 20 to 40 weeks to gain 20 pounds, assuming a consistent caloric surplus and appropriate exercise regimen. Always consider consulting a healthcare professional or nutritionist for personalized advice.
i wouldn't be trying to lose 45 pounds if i was 11. and anyway i think you'd probably gain weight in muscle either that or it would take quite a while to lose 45 pounds
Fifty months
From what I've read, usually about 8-10 weeks old. There are breeds of chicken which gain several pounds in that span of time and which would have health problems later in life if permitted to live.
It's different for everyone, but I would hope it would take at least 6 months.