Updated: 09/12/2017

OsoLean Review

By Summer Banks Sep 19, 2017

You are about to get the nitty-gritty on OsoLean whey protein powder. We at DietSpotlight took some time to create a comprehensive article, closely examining the ingredients, side effects, customer service quality and any clinical studies we could find. Then we scrutinized all sorts of user remarks and reviews from around the web. In conclusion, we summed up all of the pertinent facts and specifics to give you the details you need.

OsoLean Readers: Click here to find out why we're giving away samples of our product, Burn HD.

What is OsoLean?

First and foremost, OsoLean is a whey protein powder promoting fat loss and maintaining lean muscle mass. Moreover, it helps suppress appetite and provides fuel for daily activities. You simply add two scoops of this formula to eight ounces of fluid or food, twice each day (20 minutes before breakfast and dinner). It can be mixed with anything, because it is not supposed to have much of a flavor. This product contains a special whey protein blend with “advanced protein peptide technology.” It is suitable for both women and men, and is also gluten-free.

The brand that makes OsoLean is Mannatech, which was founded back in 1994. This company is located in Coppell, TX. You can easily purchase this diet supplement through the main website. Also, there is an informative FAQ section provided, but read on…

Steep Price of OsoLean – “Is It Worth This Much?”

Okay, the first concern we have is the steep price of OsoLean powder. “According to the official website, this protein shake sells for $58.49 per jug. This is only enough for 15 days. This means you will end up forking out $116.98 per month,” noted our Research Editor.

“Too pricey for me. Not buying the fat-loss claims either. I can find much cheaper protein shakes in local stores,” mentioned one person.

Then again, a different individual made the remark, “Only 45 calories per serving. Not bad. A little pricey, but it’s worth it for me.”

Yet another commented, “Decent weight-loss shake. I did experience some bloating and gas though. I guess these Osolean side effects can be expected.”

Unsavory Taste – “A Second Drawback”

A second issue we encountered is with OsoLean ingredients. Some users have complained about the overall taste of this protein shake. More specifically, one person remarked, “Yuck. Not what I was looking for. Has an odd flavor and only gives you 10 grams of protein.”

On the other hand, someone else posted this, “It’s not bad when mixed with milk. Doesn’t have much of a flavor really.”

“I have tried Osolean in my coffee, cereal and in smoothies. It’s alright. Seems to blend well,” revealed another person.

We must tell you that we have conducted plenty of research and this has shown us if there is one facet of a diet shake or weight-loss supplement that is obviously bothersome (steep price, unsavory taste, user complaints) the likelihood of lasting results is minimal. More to the point, if OsoLean does in fact taste bad or unpleasant to a bunch of users, this could be a big deterrent.

The Science – “Is Any There?”

Well, first off, OsoLean powder does contain 10 grams of protein. This should help stave off hunger and provide energy. On the other hand, we did not see any evidence that it burns off fat as claimed. Therefore this shake may not work for weight-loss as well as advertised.

The Bottom Line – Does OsoLean Work?

Lastly, the moment you’ve been waiting for. This is our final verdict on OsoLean. To start, we like that this supplement provides some protein and is low in calories. But we do have some reservations about this powder formula because it is quite pricey in comparison to other options. Also, we’re a little concerned about the less-than-savory flavor some people have brought up.

If you are struggling to shed some weight, then we advise you to select a supplement that contains effective ingredients for weight-loss, does not have an unsavory taste and will not drain your bank account.

Among the best products we’ve seen this year is called Dietspotlight Burn. This supplement offers a proprietary blend of four ingredients. All clinically-tested with results often found in publications such as the Journal of Medicine.

Also, they’re so confident that you’ll love the supplement that they’re offering customers a Special Trial Offer, which is a good sign.

Previous OsoLean Review (Updated May 22, 2017):

What You Should Know

OsoLean is a whey protein powder supplement created by the Mannatech company. The description explains there are advanced protein peptide technology, but the specifics of that technology is not available to the dieter. The powder tastes similar to milk and quickly mixes with foods and drinks to provide a healthy source of protein. Protein is proven to decrease hunger between meals, but every gram of protein contains four calories. With 45 calories per serving and around 0.5 grams of fat, there is probably 10 grams of protein per serving.

List of Ingredients

Whey Protein with Advanced Protein Peptide Technology.

Product Features

OsoLean is formulated for use with the OsoLean Diet Program and exercise. According to the literature on the OsoLean Plan, dieters are supposed to start out by cutting calories by just 500 per day. This will lead to a weight reduction of one pound per week in most cases. Add that caloric reduction to the calories burned during exercise and the average one to two pounds of weight loss per week can be achieved. OsoLean also helps dieters to reduce weight by offered quick, calorie cutting tips. These tips include brushing teeth after dinner to stop snacking and drinking more water and less soda. Any dieter can quickly search the Internet for a long list of dieting tips to reduce hunger and increase weight loss, so these tips are not for the OsoLean dieter alone. In terms of faster weight loss, OsoLean claims the hunger reducing power of protein. While this power has been proven in many studies, protein is not the strongest appetite suppressant available on the market. Herbal appetite suppressants tends to fight off hunger urges more than protein and contain zero calories per serving. In addition to adding OsoLean powder to their diet, dieters can add exercise to improve weight loss. This is not a new concept. The tips on the website include taking the stairs and walking from your parking spot further from the grocery store instead of parking closer. OsoLean also suggests breaking up 30 minutes of exercise per day into three 10 minute sessions to make getting in more exercise, easier. There is no pricing information for OsoLean on the official website. There are also no links to a sales page or retailer information. We could not find any retailers selling OsoLean powder.


  • Protein can decrease hunger between meals.
  • OsoLean offers information on healthy eating and exercise.


  • Protein is not the most effective appetite suppressant.
  • We have no idea how much OsoLean powder costs.


Protein supplements are a dime a dozen and all base weight loss claims on the power of protein to reduce appetite. While this effect is proven, herbal appetite suppressants are often more effective.
Learn More About Burn HD »
Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

Rating: 4.0. From 31 votes.
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OsoLean Reviews

Leave a comment or review

  How to buy in Queensland

where can i buy some in Queensland

Annemarie Filmalter

Fantastic awesome product!!!!

Alba please send me an email and I will get you Oso Lean

  Price for 30 day supply?

what is the price for a 30 day supply?

  Can it be used with other product?

Can i combine osolean with bio tone from gnld

Karen (Editor)

Hi jean, just be sure these products won’t clash with your body’s chemistry

Ashleigh Robertson

i give this product *5 just because of the success I have had, along with many friends and family members that have also had amazing success using it and following the ff4l plan. People may find it a pricy, but I have found it hasn’t made much difference to when I was buying protein shakes. I am currently training as a personal trainer and once qualified I will be training to become a ff4l coach as I do truly believe in this product. This is definitely a game changer.

Jaz (Verified User)

Osolean costs over $130 per month, not Inc postage.

  Where can I buy this?

Were in SA can i get this


Osolean is mannatech product. If any of you are interested feel free to contact me. I am in the western cape area.

Then it is literally MAGIC
Tiamari Taljaard (Verified User)

Mannatech’s products are in a total different category. But only with proper use will anyone get the full benefit. Then it is literally MAGIC.

  Where to buy from South Africa?
Jacqueline Jacobs

where in S.A can I get it from?