ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
OsoLean Whey Protein Supplement

OsoLean Whey Protein Supplement

Mannatech

#Protein Powder
73
Safety80
Efficacy65
Transparency75
Based on Examine, Wikipedia, and 23 other sources

Overview

The effectiveness of OsoLean Whey Protein Supplement for its marketed benefits is moderate. While whey protein is well-established for supporting muscle growth and recovery, the relatively low protein content per serving (10g) means that multiple servings would be required to reach optimal protein intake for muscle synthesis. The clinical efficacy of the proprietary Mannatein(R) Blend for fat loss or other benefits is not supported by public scientific research, and thus its contribution to product effectiveness is unclear. The inclusion of partially hydrolyzed whey protein isolate is a positive for digestibility, but its impact on the overall efficacy compared to standard whey protein isolate for adults is likely minimal.

The Good

Provides protein for muscle maintenance and growth

Partially hydrolyzed whey protein isolate may be easier to digest for some individuals

Contains essential minerals like Calcium

The Bad

Low protein content per serving may require multiple servings to be effective for muscle building

Clinical evidence for the proprietary 'Mannatein(R) Blend' and its 'fat reduction' claims is lacking

Potential for allergic reactions due to milk and soy content

Is it for you?

Best For: Athletes, fitness enthusiasts, individuals seeking to increase protein intake, those looking for muscle recovery

Skip If: You have a dairy allergy, severe kidney issues, or are advised to limit protein intake by a healthcare professional.

Ingredients Analysis

Cholesterol

Total Carbohydrates

Calcium

204 mg

Sodium

39 g

Mannatein(R) Blend

12.1 g

Partially Hydrolyzed Whey Protein Isolate

Whey Mineral Complex

Sialic Acid

224 mg

How to Use

Mix one scoop with 6-8 oz of water or your preferred beverage. Consume post-workout or as a protein supplement throughout the day.

Frequency:

Daily

Best Time:

Post-workout, Anytime

When:

Mixed with water or milk

Who Should Use This

Best For:

Athletes, fitness enthusiasts, individuals seeking to increase protein intake, those looking for muscle recovery

Similar Products

Whey Protein by ACTN

Whey Protein

ACTN

WHEY PROTEIN by CELLFUEL

WHEY PROTEIN

CELLFUEL

WHEY ISOLATE by LIMITLESS PHARMA®

WHEY ISOLATE

LIMITLESS PHARMA®

WHEY ISOLATE by XXL Nutrition

WHEY ISOLATE

XXL Nutrition

Whey Isolate by Limitless Pharma

Whey Isolate

Limitless Pharma

HYDROPURE 100% Hydrolyzed Whey Protein by nutrabolt

HYDROPURE 100% Hydrolyzed Whey Protein

nutrabolt