Diet Healthy?

Question

I want to do a diet, for 2 weeks, where I will drink 2 to 3 bottles of juice that contain the following:
Calories 130
Calories from fat 0
Total Fat 0.5g 1%
Saturated Fat 0g 0%
Trans Fat 0%
Cholesteral 0%
Sodium 10mg
Potassium 370mg
Total Carbohydrate 30%
Dietary Fiber 0%
Sugars 25%
Protein 1g
Spirulina 1,000 mg
and other vitamins

That will be by far my main diet. Is this an ok idea or not?
If its okay to do it for 2 weeks, how about a month?

Answer 1

its not ok to do for any amount of time.
you will lose water weight and muscle but NOT fat. also you will slow down your metabolism dramatically and end up having higher body fat percentage.
find calorie/fitness calculator on the net, enter all your stats and it will tell you how many calories you need a day to maintain, take off 300-400cal off that number and thats how much you need to lose.
eat 5-6 small meals a day (eat every 2-3 hours)
5-8 servings of fruit and veggies a day
8 glasses of water
have complex carbs for breakfast - they give you energy
have lean meat (protein) for dinner - repairs muscle
cardio exercise 4-6 times a week for 30-50min, light weight training
dont consume foods that are made of white flour (white bread, cakes, past etc.), sugar loaded foods (cookies, icecream, candy etc) and nothing fried, oily.
ofcourse you can spoil yourself once in a while with a little treat:)

Answer 2

That is a terrible idea. There is absolutely no nutritional value whatsoever. Only having about 400 calories/day is not healthy at all! You will lose weight and then as soon as you are done with it and start eating normal again you will gain it all back + more!

Don't do it!