FAQs
- What is OsoLean powder?
- The OsoLean powder is an all-natural protein blend that helped improve the lean mass to fat ratio, when combined with a reduced-calorie diet such as the OsoLean® Plan and proper exercise.
- How is OsoLean powder different from ordinary whey proteins?
- Most whey protein is simply that—whey. In developing OsoLean powder, Mannatech secured a proprietary process where specific parts of whey protein, called peptides, are separated and concentrated to ensure the optimal level of fat-loss peptides exist in the product.
- What ingredients are in OsoLean powder?
- OsoLean powder is a specially formulated whey protein blend that includes an advanced protein peptide technology, which helps the body burn fat while maintaining lean muscle.*
- How much protein is in each serving of OsoLean powder?
- Each serving (2 scoops) of OsoLean powder contains 10 grams of protein, 20% of the daily recommended value (DV).
- How do I use OsoLean powder?
- Mix 2 scoops (12.2 grams) in 250 ml of liquid or add to food twice daily. For best results, take OsoLean powder with 250 ml of liquid 20 minutes before breakfast and 20 minutes before dinner. OsoLean powder can be mixed directly into beverages and sprinkled over foods.
- Can I use OsoLean powder in food?
- Yes! Mannatech’s OsoLean powder blends perfectly with countless foods right before serving. However, for best results we suggest following the recommended directions for use—with 250 ml of liquid 20 minutes before breakfast and 20 minutes before dinner.
- Can I add OsoLean powder to the GlycoSlim drinks?
- Yes!
- What can I mix OsoLean powder in?
- OsoLean powder mixes well with virtually anything. It goes well with beverages such as coffee, milk, meal replacement shakes and fruit juices—even plain water. OsoLean powder also mixes well with cereal, yogurt and soups and salad dressings.
- Is the soy lecithin in OsoLean powder non-GMO?
- OsoLean powder is made with non-genetically modified (or non-GMO) soy lecithin.
- I’m lactose intolerant. Can I take OsoLean powder?
- There is a small amount of lactose in OsoLeanpowder. Since the effects of lactose intolerance vary with each person, consult your healthcare practitioner with any concerns regarding OsoLean powder.
- I’m allergic to casein. Can I use OsoLean powder?
- Mannatech’s OsoLean powder is a whey protein supplement, but it may contain trace amounts of casein. Testing for the presence of casein has not been performed. Anyone with allergies to casein should discuss use of this product with their personal healthcare professional.
- Does OsoLean powder contain gluten?
- Mannatech’s OsoLean powder is gluten-free.
- What does OsoLean powder taste like?
- OsoLean powder tastes similar to dairy products such as skim milk.

