Metabolic Advantage™ | GNC
Gluten Free Gluten Free
Sugar Free Sugar Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Sodium Free Sodium Free
No Preservatives No Preservatives
View All Specialty Diets

Enzymatic Therapy™ Metabolic Advantage™


Item # 239002
Gluten Free Gluten Free
Sugar Free Sugar Free
Dairy Free Dairy Free
Soy Free Soy Free
No Artificial Flavors/Colors No Artificial Flavors/Colors
Sodium Free Sodium Free
No Preservatives No Preservatives
View All Specialty Diets

Product Information



  • Thyroid Formula*
  • Enhances thyroid health*
  • Influences metabolism*
  • Supports weight loss*
Kick-Start Your Thyroid with Metabolic Advantage™

Metabolic Advantage thyroid formula provides essential ingredients for healthy thyroid function.* Since the thyroid gland regulates your metabolic rate, or how fast the body burns calories, it is important to consider your thyroid health when beginning any weight-loss regimen.
  • Contains L-Tyrosine, an amino acid that is needed by the thyroid to produce one of the most important hormones that control metabolism*
  • Keeps you feeling energetic*


Nutrition Facts
Serving Size  2 Capsule(s)
Servings Per Container  50

Amount Per Serving     % DV

Vitamin B12 (as Cyanocobalamin) 100 mcg   1667%
Iodine (as Potassium Iodide) 200 mcg   133%
Magnesium (as Magnesium Oxide) 200 mg   50%
Zinc (as Zinc Gluconate) 6 mg   40%
Copper (as Copper Gluconate) 300 mcg   15%
Manganese (as Manganese Gluconate) 2.3 mg   115%
Molybdenum (as Sodium Molybdate) 100 mcg   133%
Sodium 20 mg   1%

L-Tyrosine  248 mg   **
Multi-Glandular Complex (liver, lung, pancreas, heart, kidney, and spleen)  70 mg   **
Thyroid (thyroxin-free)  8 mg   **

** Daily Value (DV) not established.
Other Ingredients
Modified cellulose gum, Gelatin, Magnesium Stearate, Silicon Dioxide, Titanium Dioxide Color
Contains no sugar, yeast, wheat, gluten, corn, soy, dairy products, artificial flavoring, or preservatives. All colors used are from natural sources.
Label (click image to enlarge)

How To Use

Two capsules three times daily.
If pregnant, nursing, or taking prescription drugs, consult your healthcare practitioner prior to use.

ETI is an FDA-registered Drug Establishment.



3.0 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Poor formula
Not as good as Research Verified Thyroid Aid and missing a lot of ingredients known to be helpful while have a lot of useless or dangerous ingredients that could cause problems or interact negatively if not careful.My rating is ZERO! Although I HAD to pick a star just to post my review.
March 10, 2019
Seems to work well so far.
December 16, 2018
6 months ago
Not happy with product.
Do not feel any difference. It's been about 3, maybe I need to take it a while far, disappointed:(
November 4, 2017
1 year ago
Every person is different so it will affect you differently - not as advertised
You get what you pay for. Did not live up to other reviews. I understand that each person is different so this will have different outcomes for each individual. In two weeks time I had gained 9 pounds, became very tired no energy and in general felt worse after taking this than I did before. At first I did not have any appetite but the longer I was on it, it seemed like it accelerated my appetite. I could not understand the weight gain as before I started this I was maintaining my weight. I eat very healthy foods, no processed foods and use portion control so do not know what went wrong.
October 27, 2017
1 year ago
This product helped me lose my extra weight. Your metabolism slows down soon as you hit 30. But I'm getting back to the weight I was in my 20s.
I just wanted to share my experience with everyone. I began taking these 2 months ago, however I only take it once a day. I also stopped midnight snacking. 2 months later I've lost 23 pounds and STILL GOING. I am on medications that cause you to gain weight, and most medications cause you to gain weight by slowing down your metabolism. I was 187 and I'm now 162. Truly amazing. However the one thing I didn't take into consideration was, " loose skin " . I wish I knew that would have been a factor. Any How, this product really worked for my personal experience. I don't really review many products but I want to share my good news with you.
July 19, 2017
Impressed with the claims & very easy to swallow!
I have more energy & I do not snack all day like I used to.
July 7, 2017
1 year ago
higher metabolism
Higher Metasbolim
October 24, 2009
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will this help i had thyroid removed and now hypoactive thyroid, so i am wondering if it will help or not?
Candice T on Feb 20, 2019