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Bioavailability of Omega-3 fatty acids after a novel microencapsulation process

Bioavailability of Omega-3 fatty acids in healthy male participants after a novel microencapsulation process

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12612000634875
Enrollment
4
Registered
2012-06-14
Start date
2012-05-18
Completion date
2012-06-18
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Long-chain Omega-3 fatty acids, Docosahexanoic Acid (DHA) and Eicosapentanoic Acid (EPA), are associated with reducing the risk of a range of chronic diseases, as well as inflammation. They are also linked to improved outcomes as adjunctive therapies in some cancers and arthritis, in addition to promoting growth and development. The National Health and Medical Research Council recommendation for males and females is outlined in Figure 1. Suggested Dietary Targets represent the amount recommended for the prevention of chronic disease, i.e. cardiovascular disease and is equivalent to the 90th percentile of intake of the Australian/New Zealand population. Unless people consume oily fish at least twice per week or take omega-3 fish oil capsules, meeting this recommendation is difficult. Fortifying foods with fish oil is a means of improving intakes of EPA/DHA, but existing encapsulation technologies prevent significant doses being incorporated into foods. Higher doses using the current technology produces unsatisfactory flavour profiles and instability in the product. This project aims to improve on this with a trialling a new technology.

Interventions

A new technology for delivery of Omega-3 oils in foods. The amount of active ingredient (DHA/EPA fish oil) provided by the new technology (a seaweed gel encapsulant) will be 1300mg. It will be provided as a liquid oil emulsion in 300mL milk. This is a single dose delivered on one day only. This is a crossover study with a 6-week washout period. The second treatment arm is 1300mg DHA/EPA fish oil without the seaweed gel encapsulant. This is a single dose delivered on one day only. The technol

A new technology for delivery of Omega-3 oils in foods. The amount of active ingredient (DHA/EPA fish oil) provided by the new technology (a seaweed gel encapsulant) will be 1300mg. It will be provided as a liquid oil emulsion in 300mL milk. This is a single dose delivered on one day only. This is a crossover study with a 6-week washout period. The second treatment arm is 1300mg DHA/EPA fish oil without the seaweed gel encapsulant. This is a single dose delivered on one day only. The technology is planned to assist the delivery of higher concentrations of Omega-3 oils in food and beverage products, thereby facilitating the development of new functional food products.

Sponsors

University of Queensland
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
Male
Age
18 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

(i) Age 18-60 years (ii) Healthy body weight (body mass index [BMI] 18.5-24.9 kg/m2), not overweight or obese (to improve likelihood of compliance with diet imposed the week prior) (iii) Not currently taking omega-3 supplements (iv) Available to participate for an entire day at 2 time points, 6 weeks apart

Exclusion criteria

(i) BMI <18.5 or >24.9 kg/m2 (ii) Current infection (iii) Current consumption of omega-3 supplements (iv) Inability to provide informed consent due to diminished understanding or comprehension, or a language other than English spoken and an interpreter unavailable

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026