How do I lose 40 punds in 1 month?

How do I lose 40 punds in 1 month?

I have this diet that supposedly helps you lose around40-50 pounds in a month.I tried it for a week and lost 10 pounds, but you get seriously hungry and it's a chemical diet so son't do it for more than 1 month and try to exercise so you don't lose muscle too.

Breakfast (same every day)

-Half grapefruit or an orange
-2 boiled eggs
- Black coffee or tea

Day -1 type of fruit ( any amount )

Dinner1 -grilled meat
-salad ( cucumber, tomatoes, lettuce, pepper)

day 2 Lunch - Chicken( grilled or broiled)
-Tomatoes
-1 grapefruit

dinner -2 boiled eggs
-toast
-grapefruit

3 lunch -light cheese
-toast
- tomatoes

dinner- grilled lean meat

4 lunch -1 type of fruit ( any amount)

dinner -grilled meat
- salad

5 lunch -2 boiled eggs
-sauté

dinner -grilled fish or tuna
-salad
- grapefruit

6 lunch - 1 type of fruit

dinner -grilled meat
-salad

7 lunch -Grilled chicken
-sauté
-tomato
-1 grapefruit

dinner -sauté

Repeat for 4 weeks

Weigh yourself after first 15 days then in the end