Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier
WebMD

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine
WebMD

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion
    WebMD

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community
    WebMD

    Community

    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Font Size
A
A
A

Supplements for Weight Loss

Conjugated Linoleic Acid (CLA)

This is a popular supplement that contains chemicals found in a fatty acid called linoleic acid. There are claims that it may help curb body fat and help you stay full.

The research on CLA for weight loss is mixed. Some suggests that for some people, 0.7-4.5 grams of CLA per day may:

  • Curb body fat
  • Boost muscle

But other research shows it doesn't help you shed pounds.

Natural Medicines says that CLA is "possibly effective" for weight loss.

Some researchers warn that long-term use, especially if you're obese, may raise insulin resistance, which makes it more likely you'll get type 2 diabetes. It might worsen cholesterol in your blood as well, which raises the risk of heart problems.

In some people, CLA may cause side effects such as:

  • Upset stomach
  • Nausea
  • Loose stools

Glucomannan

This is made from the konjac plant. Like other dietary fibers, it's supposed to help you lose weight by blocking fat in your food from being absorbed into your body.

Very early studies suggest it might be helpful, but other evidence shows it doesn't work.

Natural Medicines says there is "insufficient evidence" to rate how well glucomannan works for weight loss.

You need to take glucomannan with at least 8 ounces of water. Unless you take it with water, especially if you're using the tablet form of the supplement, you could choke or get a blockage in your:

  • Throat
  • Esophagus (tube that connects the throat to the stomach)
  • Intestine

It appears to be safer if you take this supplement as a powder.

Glucomannan also may make it harder for your body to absorb medications. So take your medicine either 1 hour before or 4 hours after you use glucomannan.

Green Tea Extract

It supposedly works by:

  • Curbing your appetite
  • Raising calorie and fat metabolism

Natural Medicines says there isn't enough evidence to rate how well it works.

Side effects of green tea extract, especially in high amounts, include:

  • Nausea
  • Vomiting
  • Bloating
  • Gas
  • Diarrhea
  • Dizziness
  • Insomnia
  • Agitation

Green Coffee Extract

Early studies suggest it may lead to modest weight loss, but more research is needed. Natural Medicines rates it as "possibly effective."

Few people have side effects, but because of the caffeine in green coffee it may cause:

  • Headaches
  • Stomach upset
  • Nervousness
  • Insomnia
  • Abnormal heart rhythms

Vitamins and
Supplements
Lifestyle Guide

Which Nutrients
Are You Missing?

Learn More

Today on WebMD

vitamin rich groceries
Do you know your vitamin ABCs?
St Johns wart
Ease hot flashes and other symptoms.
 
clams
Are you getting enough?
Take your medication
Wonder pill or overkill?
 
fruits and vegetables
Video
!!69X75_Vitamins_Supplements.jpg
Article
 
Woman sleeping
Article
Woman staring into space with coffee
Article
 

Send yourself a link to download the app.

Loading ...

Please wait...

This feature is temporarily unavailable. Please try again later.

Thanks!

Now check your email account on your mobile phone to download your new app.