Originally Answered: How much weight can I lose in 3.5 months?
At your weight of 160lbs I'd recommend you eat 1500 calories. More important than the number of calories is how you break down those calories. If you at 1300 calories from carbs and 200 from protein that would still come out to 1500 but your body would look terrible from it. But if you ate 650 from protein/650 from fats/200 from carbs than your body would look stunning and your husband will thank me for it :P
The end of may is 14 weeks away. If you figure you'll lose 2lbs per week that would give you almost 30 lbs of fat loss. But that 2lbs per week is just a rule of thumb and I've seen people lose more. Maybe you're one of the special ones.
Design your meals with the following foods.
Protein sources: eggs, tuna, chicken, steak (once per day), salmon, talapia (or any fish), shrimp, crab, turkey, whey protein powder
Fat sources: almonds, cashews, all natural peanut butter, avacado (be carefuel, they have a lot of carbs), extra virgin olive oil, fish oil capsules, evening primrose oil capsules
Carb souces: only GREEN veggies (sorry!) you can re-introduce carbs after you reach your goal weight. Slowlyyyyy.
I'd also recommend you start lifting weights 3x per week. This is very important during a fat loss diet too because it will ensure you KEEP your muscles. Most people lose way too much muscle during a diet and not enough fat. Lifting weights will prevent this. Don't worry, you won't gain muscle lifting weights on this diet because carbs are needed during the muscle building process. Protein and fats are like the bricks to a new house. Carbs are the workers. Without the workers the bricks will just sit there.
I'd also recommend cardio 3x per week for 30 mins. Keep it low intensity. That is defined as keeping your heart rate in the 120-130 range. Stationary bike is fine. Walking on a treadmill at an incline is fine. Jogging is NOT fine.
THere is much more detail I could give but I don't want to over load you so I will just keep my mouth shut for now.
Good luck and send me a postcard!