If you want to gain weight then you are trying to do too much at one time. GNC's Pro Performance Weight Gainer is not a protein supplement. It is exactly what it says - a weight gainer. There is a huge difference. Weight gainers are very high in calories with the vast majority of them coming from maltodextrin and/or fats. In the case of this particular product, you will be consuming
142 grams of sugar and
16 grams of fat (10 grams saturated). It is also very high in sodium. Each serving size is 400 grams so this will take a hell of a lot of mixing. Put the milk or water in the blender and get it going and then slowly add the powder. Allow it to fully mix before adding more powder. If after a few minutes, it hasn't completely mixed or if the motor on the blender has burnt out, then you are out of luck as some powdered supplements just will not mix, no mater how hard you try.
No doubt you have spent a great deal of money as GNC has never been cheap, but I would suggest that you don't use supplements of this type. They are not a healthy addition to your nutritional intake, especially when the total caloric intake per serving is 1850 calories. For some individuals, this would amount to nearly their entire daily caloric requirements in one meal.
You would benefit more from setting up a structured eating schedule for yourself with six meals spaced out throughout the day. Concentrate on complex, low to medium glycemic, carb sources with the addition of protein sources and essential fats. Try to get the bulk of your calories from real foods. If you need the help of a supplement then go with a high quality protein supplement (whey isolate or higher). If you are going to use a weight gainer, then stick to ones with a caloric serving size of 600 calories or less such as ProLab N-Large2 and only use them 2-3 times per day.
Make sure you also know what your daily caloric requirements are before you start buying and using supplements or any progress you may make will be based on guesswork.
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