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Effects of Liposomal Encapsulation on Vitamin C Absorption and Metabolism

NCT06372171 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2024-04-17

No results posted yet for this study

Summary

Vitamin C is an important antioxidant in the human body and plays many important roles. It is currently known that vitamin C has the functions of treating scurvy, assisting in collagen synthesis, whitening, and increasing immunity. Smokers, patients with cardiovascular disease, and patients with diabetes may have higher requirements for vitamins due to higher oxidative stress in the body. Liposome coating is a technology commonly used in food processing and medicine to protect active substances, increase absorption or slow release. Currently, vitamin C is commonly available on the market as an additive nutritional supplement in the form of powder packets, tablets, etc. The disadvantages are that vitamin C is relatively unstable, easily destroyed by gastric acid, and maintains blood concentration for a short time. Taking liposome microbial C has been Found to have the potential to increase bioavailability in the human body, it is expected that vitamin C coated with lecithin is relatively stable and can be stabilized in the small intestine without being damaged by gastric acid, while reducing the risk of gastrointestinal discomfort caused by the acidity of vitamin C. According to the revised seventh edition of the Reference Intake of Dietary Nutrients for Chinese People, the upper daily intake of vitamin C (tolerable upper intake levels, UL) for people aged 19 to 70 is 2,000 mg. According to literature, the absorption rate of vitamin C when consuming 30-180 mg per day is about 70-90%; when the daily intake exceeds 1000 mg, the absorption rate will drop to less than 50%. The dose of vitamin C used in this study is more than 1500 mg. The purpose is to explore whether the sustained-release characteristics of liposome coating technology can improve the absorption rate and achieve better bioavailability when consuming high-dose vitamin C powder. It is expected that through the egg The liposome vitamin C powder made of phospholipids increases its maintenance time in the blood, thereby increasing the supplementary effect of vitamin C powder and serving as another supplement option for vitamin C.

Conditions

  • Nutrition, Healthy

Interventions

DIETARY_SUPPLEMENT

Satge 1

General vitamin C powder group (Contains 1500 mg Vitamin C) Number 1-10 liposomal encapsulation C powder group (Contains 1500 mg of vitamin C and lecithin and is coated) Number 11-20

DIETARY_SUPPLEMENT

Stage 2

General vitamin C powder group (Contains 1500 mg Vitamin C) Number 11-20 liposomal encapsulation C powder group (Contains 1500 mg of vitamin C and lecithin and is coated) Number 1-10

Sponsors & Collaborators

  • National Yang Ming Chiao Tung University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
SINGLE
Model
CROSSOVER

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-04-30
Primary Completion
2024-09-30
Completion
2024-12-31

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06372171 on ClinicalTrials.gov