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Dr. Phil, MD
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What are the side effects of Pro Performance from GNC?

This answer was rated:

What are the side effects of Pro Performance AMP Mega Men Powered Ripped Vitapak Program GNC?

Can you list the ingredients of GNC Pro Performance AMP Ripped Vitapak?

Customer: replied 4 years ago.

GNC Pro Performance AMP Ripped Vitapak Review

What is GNC Pro Performance AMP Ripped Vitapak?
How can you get the maximum amount of benefits from your workout? How do you get that chiseled body you’ve been working so hard for? You need the right amount of energy and nutrients to burn those calories and lose weight.

GNC Pro Performance AMP Ripped Vitapak promises to fill the nutritional holes in your diet that are keeping you from losing weight and gaining lean muscle.

Each pack contains six pills that include multivitamins, fat burners, energizers, and diuretics.

Do these pills include the right ingredients to deliver the weight loss and muscle gain that the GNC Pro Performance AMP Ripped Vitapak claims?

What are the Ingredients in GNC Pro Performance AMP Ripped Vitapak?

MegaMan Sport – This first pill contains a long list of vitamins including B-vitamins for carb metabolism and energy, amino acids that can help increase muscle mass, and antioxidants to boost your immune system.
Conjugated Lionleic Acid (CLA) – A clinically tested fat burner and lean muscle mass builder, a supplement must contain 3.4 grams of CLA to be effective. GNC Pro Performance AMP Ripped Vitapak contains 4 grams, though there is no known benefit to having more than the recommended dosage.
Thermo Igniter 12x – Contains fat burners such as caffeine, capsicum fruit extract, and black pepper extract.
Waterex – Made mostly of diuretics such as garlic clove and uva ursi. Diuretics result in the loss of water weight, which can be deceiving in diet pills.
Side effects that have been noticed as a result of taking GNC Pro Performance AMP Ripped Vitapak include nausea, diarrhea, and stomach cramps. CLA is known to cause nausea.

How Much Does GNC Pro Performance AMP Ripped Vitapak Cost?

Here’s where GNC Pro Performance AMP Ripped Vitapak falls painfully short. For a 30-day supply, the listed retail price is $69.99.

Even if GNC Pro Performance AMP Ripped Vitapak is an effective diet pill, it is extremely expensive.

There is a money back guarantee. The label says that you can use it for as little as 10 days and still get your money back.

However, there is no maximum amount of days listed, and 10 days is hardly enough to tell if GNC Pro Performance AMP Ripped Vitapak is actually effective or if you’re just losing water weight.

Our Take on GNC Pro Performance AMP Ripped Vitapak


GNC is a reputable company
Impressive list of ingredients known or clinically tested to encourage metabolism, weight loss, and increased muscle mass
Amounts of ingredients included


Details of money back guarantee are unclear
Must take 6 pills per day, some customers noted that they are hard to swallow
Diuretics may trick you into thinking you are losing a lot of weight right at first, but this weight loss is water weight. Diuretics do not produce long-term weight loss results.
If you are willing to spend the money, the GNC Pro Performance AMP Ripped Vitapak may be worth a try. Customer reviews were positive. Some consumers said they noticed an immediate increase in energy and some noted weight loss and muscle mass gain.

For diet pills that may be a better value and are not geared so specifically to athletes, look into the recommended diet pills.

3 Best Diet Pills of 2010

I reviewed this thoroughly.

The most concerning thing that it contains are:

1) the fat burner mix contains supplements that increase your metabolism. With this, it can cause elevated heart rate and cardiac arrhythmias. These are basically like a super version of caffeine

2) the diuretic mix contains diuretics that deplete your body of water. This can cause dehydration, electrolyte imbalances and possibly kidney failure.

3)they all cause nausea, vomiting and diarrhea as stated on the package.

Overall, seems very strong and unsafe. I would avoid it.

Customer: replied 4 years ago.

Some risk of ulcers, cancer or stroke.

No. I doubt that. Not likely to cause ulcer, cancer or stroke
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