I want to use them instead of the IP shake.

Is this the product you mean?
http://www.gnc.com/product/index.jsp?productId=2174905

If so, this is not a good substitute for IP shakes. It is much too high in carbs and much too low protein to compare to IP. There are many other products that ARE equivalent. A few examples are EAS Carb AdvantEDGE, Pure Protein, Syntrax Nectar, and Muscle Milk Light. Here's what you want to look for on the label:

Around 100 calories per serving
less than 30% total calories from fat
8g or less carbs
at least 12-15g protein

what is the minimum amount of protein you should have a day?

On IP, you should be somewhere in the 90-110g protein per day. The meal replacement products clock in at around 15-18g each (3 per day), and your dinner protein should be 40-55g protein.

The RTD shakes from GNC are okay I think..a little high in calories though..

http://www.gnc.com/product/index.jsp...959301.3107334

I think you're right - I remember USMCVET saying he used the ready-to-drink ones and those weren't as high in carbs as the powder.

Bottom line, always check the label and compare the nutritional content!

This is the Lean shake RTD




Serving Size 1 bottle
Servings Per Container 4



Amount Per Serving % DV




Calories 170.00

Calories from Fat 50.00

Total Fat 6.00 g 9%

Saturated Fat 1.50 g 7%

Trans Fat 0.00 g

Cholesterol 20.00 mg 7%

Total Carbohydrate 6.00 g 2%

Sugars 2.00 g

Protein 25.00 g 0%

Dietary Fiber 3.00 g 12%

Sodium 390.00 mg 16%

Potassium 475.00 mg

I drink the Mango Drink from IP and it has 150 cal and total fat 4.5 and carb 9g and 20g of protein....really close to RTD lean shake

Thanks for all your help....This is a great site.

Sorry for bringing this old thread, I just want to make sure this shake ar ok.

I am planing on using just shakes for now , They are 14 oz so I may drink 10 oz in order to mach whit the IP .

Thanks for all the help.