Updated: 11/24/2015 - Sponsored by Pronabolin

GPS 14 To Lean Review - Does this Weight-Loss Supplement Kit Work? Are side effects and ineffective ingredients deal breakers?

Editor's Review: 3.5 / 5.0

We’ve all struggled to find the right diet supplement, so we decided to do one of our comprehensive reviews on GPS 14 to Lean, looking closely at the ingredients, side effects, scientific research and customer service. Plus, we read hundreds of testimonials and experiences to get a feel for the product. Then, we summarized and refined to give you the bottom line.

EDITOR'S TIP: Combine GPS 14 To Lean with a proven testosterone booster such as Pronabolin for better results.

What You Need to Know

First of all, GPS 14 to Lean is a weight-loss supplement kit suitable for both men and women. The kit is available online for around $25 and claims that you will see real results in just two weeks. It contains a variety of ingredients including vitamin B6, magnesium, potassium, caffeine, green tea, L-tyrosine, glucomannan, chromium, theobromine, cinnamon bark extract and several others. It contains an energy catalyst, an afternoon appetite suppressant and an ultra-lean finishing compound. The program will last for two weeks.

GPS 14 to Lean is a program from Gunnar Peterson, a personal trainer to stars in Beverly Hills. We were unable to determine how long the company has been in business as the official website does not provide this information. We like that the product is available in stores, but read on…

Negative Side Effects – “Yikes?”

Our first issue with GPS 14 to Lean ingredients was the potential for side effects, based on consumer review. “With all of the reports of adverse reactions we found, we suggest users proceed with caution, which is not something they should have to do,” said our Research Editor.

“The energy formula gave me an awful headache, even though I only took 1 ,not the 3 recommended and it enhanced my appetite-I was crazy hungry all day. The appetite suppressant did suppress my appetite, as I wound up with horrible stomach cramps.” said one user.

Scroll below for one of the best products we’ve seen in 2015.

Ineffective Ingredients – “No Results”

There are some ingredients in the formula that can help, like caffeine and green tea. But, it’s the ones that have no effect on weight-loss that worry us. This one contains several vitamins and minerals and some cinnamon bark, which clinical research will not prove beneficial.

One user said, “Not Impressed with this product, all hype did not live up to its expectations.”

“It did not work it all!,” said another.

Our research indicates that if there’s part of a diet program that’s difficult, like potential side effects, it becomes more difficult for users to use over the long term, which is sometimes necessary to see results. If GPS 14 to Lean does not include the ingredients need for results, we see a red flag.

The Science – “Proven Effective?”

Several of the ingredients in GPS 14 to Lean have been studied clinically for their effectiveness in weight-loss, appetite suppression and diuretic ability. However, we do not know how much of each is in the formula, so we cannot speculate as to whether or not there’s enough to be effective. At DietSpotlight, we look to science to give us a thumb up and that’s not the case here.

The Bottom Line – Does GPS 14 to Lean Work?

How about running out to get this one – maybe not. We were initially excited to review GPS 14 to Lean, because it appeared to be an affordable way to jumpstart a longer term weight-loss program. Due to the lack of information about how much of each ingredient is in the formula, the reports of ineffectiveness and the potential for side effects, we have doubts about recommending this one.

If you’d like to shed some pounds, we suggest selecting a supplement regimen that gives you safe and effective ingredients. A great price and no reports of side effects are also great selling points.

Among the best products we’ve seen in 2015 is one called Pronabolin. The formula is a proprietary blend of nine ingredients clinically proven to help you reclaim energy and naturally boost testosterone levels. There’s no talk of harmful side effects and comments all around the web show people are seeing great results.

Also, the makers of Pronabolin are so confident in their product they’re offering every customer a 120-day money-back guarantee and multiple-bottle discounts.

Learn More About Pronabolin »
GD Star Rating

How Does GPS 14 To Lean Compare?

Previous GPS 14 To Lean Review (Updated May 13, 2014):

What You Should Know

Click Here To See Our Highest Rated Review

If you are like countless others, you are interested in losing a few pounds. Sadly weight gain often happens as you age, and it can sneak up on you very quickly. It is best to take action early on. This is where GPS 14 to Lean comes into the picture. It is a weight loss supplement kit that is suitable for guys and girls. You can buy this product online for around $25, and you should see real results in only 14 days. Ingredients:
  • Vitamin B6 (as Pyridoxine HCI)
  • Magnesium (as Magnesium Citrate)
  • Potassium (as Potassium Citrate)
  • L-Tyrosine
  • Caffeine
  • Green Tea
  • Theobromine
  • Chromium
(as Chromium Dinicotinate Glycinate)
  • Vegetable Cellulose
  • Guar Gum
  • Glucomannon
  • Cinnamon Bark Extract
(15% Cinnamic Aldehyde)
  • Wheat Amylase Inhibitor
  • Banaba Leaf Extract
(1% Corosolic Acid)
  • Vitamin B6 (as Pyridoxine HCI)
  • Calcium (as Calcium Carbonate)
  • Magnesium (as Magnesium Citrate)
  • Potassium (as Potassium Citrate)
  • Bucchu Leaf 4:1 Extract
  • Uva Ursi Leaf Extract (20% Arbutin)
  • Horsetail Extract (Whole Plant) (7% Soluble Silica)
  • Dandelion Leaf Extract
  • N-Acetyl Cysteine
  • Rosemary Leaf Extract
  • Celery Seed Extract
  • Parsley Leaf
  • Sennosides A & B (From Senna Leaf Extract)

Product Features

GPS 14 to Lean consists of a weight management energy catalyst, PM appetite suppressant, and ultra-lean finishing compound. The energy catalyst is taken 30 minutes before exercising (three capsules), the PM appetite suppressant is taken before dinner with 12 ounces of water (three capsules), and the finishing compound is taken on the last three days of the program (four capsules twice each day, along with 16 ounces of water). This supplement program lasts for 14 days total. Some of the important ingredients found in GPS 14 to Lean products are Green Tea Extract, L-Tyrosine, Caffeine, Theobromine, Glucomannan, Cinnamon Bark, Banaba Leaf, Vitamin B6, Dandelion Leaf, Uva Ursi Leaf, Bucchu Leaf, and Senna Leaf. Together these ingredients help flush out the digestive tract and bladder, boost the metabolism, suppress appetite, and increase energy levels.

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  • User instructions are posted online.
  • A complete ingredient list is provided on dealer websites.
  • GPS 14 to Lean contains herbal extracts.


  • This supplement kit might lead to some side effects.
  • You have to take three different supplements with this weight loss product.
  • GPS 14 to Lean may cause some intestinal discomfort.
  • User success stories were not found to support this product.
  • A significant amount of caffeine is used in this weight loss formula.


There are all sorts of ingredients used in GPS 14 to Lean formulas to help cleanse the body. In all likelihood, this supplement kit will help flush out the colon, reduce excess water weight, and lead to some weight loss. However, it will unlikely help much with long-term weight management. GPS 14 to Lean appears to be more of an internal cleansing kit than a fat loss formula.

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