Fabuless® (Structured Lipid Emulsion)

Evidence Level
Limited
1 Clinical Trial
3 Documented Benefits
2/5 Evidence Score

Fabuless® (also sold as Olibra) is a structured emulsion of palm and oat oils designed to prolong fullness and reduce later food intake. The idea is that the special emulsion reaches the lower gut intact and triggers the body's natural appetite brake. Clinical results have been mixed, with some trials showing reduced intake and others showing no effect.

Studied Dose Around 5 grams of the emulsion before a meal.
Active Compound A structured oil-in-water emulsion of fractionated palm oil and oat oil.

Benefits

Satiety support

Some randomized studies found that the structured lipid emulsion increased fullness and reduced energy intake at later meals.

Appetite management

Fabuless is positioned to extend the time between meals and curb snacking, supporting calorie control.

Honest evidence note

Results across trials are mixed: several studies found no significant effect on appetite or weight, so benefits should be viewed with realistic expectations.

Mechanism of action

1

Ileal brake activation

The emulsion is designed to deliver fat to the lower small intestine intact, triggering the ileal brake, a reflex that slows digestion and signals fullness.

2

Delayed fat digestion

Slower release of fatty acids prolongs satiety signaling from the gut to the brain.

Clinical trials

1
Structured Lipid Emulsion and Satiety — Study
PubMed

Study of small particle size lipid emulsions on satiety and energy intake. (Chan et al. 2017, Physiology and Behavior)

Lean men.

The lipid emulsion influenced satiety and energy-intake measures; across the wider literature, appetite and weight results have been mixed.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated — digestive symptoms are most common.
Mild bloating or changes in bowel habit can occur.
Contains palm and oat oil.
Evidence for appetite benefit is mixed.

Important Drug interactions

No major drug interactions are established for this ingredient.
Tell your doctor about all supplements if you take prescription medication.
Use caution if pregnant, breastfeeding, or managing a health condition.

Frequently asked questions about Fabuless® (Structured Lipid Emulsion)

What is Fabuless?

Fabuless® (also sold as Olibra) is a structured emulsion of palm and oat oils designed to prolong fullness and reduce later food intake. The idea is that the special emulsion reaches the lower gut intact and triggers the body's natural appetite brake.

What is Fabuless used for?

Fabuless is researched primarily for Weight Management. Some randomized studies found that the structured lipid emulsion increased fullness and reduced energy intake at later meals.

What is the recommended dosage of Fabuless?

The clinically studied dose is Around 5 grams of the emulsion before a meal. Always follow the product label and check with a healthcare provider for personal advice.

Is Fabuless safe, and does it have side effects?

For most healthy adults, Fabuless is well tolerated at studied doses. Reported effects can include: Generally well-tolerated — digestive symptoms are most common. Mild bloating or changes in bowel habit can occur. It may also interact with some medications. Fabuless is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Fabuless interact with any medications?

Possible interactions include: No major drug interactions are established for this ingredient. Tell your doctor about all supplements if you take prescription medication. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Fabuless?

NutraSmarts rates the evidence for Fabuless as Limited (2 out of 5). It is backed by 1 clinical trial and 1 cited reference summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Chan YK, Budgett SC, MacGibbon AK, et al. Small particle size lipid emulsions, satiety and energy intake in lean men. Physiol Behav. 2017;169:98-105..PubMedUsed to support: Study of the satiety effect of the structured lipid emulsion (results across trials are mixed).