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J Nutr. 2016 Nov;146(11):2199-2205. Epub 2016 Sep 21.

Egg Consumption Increases Vitamin E Absorption from Co-Consumed Raw Mixed Vegetables in Healthy Young Men.

Author information

1
Departments of Nutrition Science and.
2
Food Science, Purdue University, West Lafayette, IN.
3
Departments of Nutrition Science and campbellw@purdue.edu.

Abstract

BACKGROUND:

Most people living in the United States underconsume vitamin E, and dietary approaches to increase the absorption of vitamin E may help individuals to meet their body's needs.

OBJECTIVE:

We assessed the effect of adding cooked whole egg to a raw mixed-vegetable salad on α-tocopherol and γ-tocopherol absorption.

METHODS:

With the use of a randomized-crossover design, 16 healthy young men [mean ± SD age: 24 ± 4 y; mean ± SD body mass index (in kg/m2): 24 ± 2] consumed the same salad (all served with 3 g canola oil) with no egg [control (CON)], with 75 g cooked egg [low egg (LE)], or with 150 g cooked egg [high egg (HE)]; a 1-wk dietary washout period was included between trials. For the first 7 d of each trial, participants consumed a low-vitamin E diet to reduce plasma vitamin E concentrations. Blood was collected hourly for 10 h and the triacylglycerol-rich lipoprotein fractions (TRLs) were isolated. α-Tocopherol and γ-tocopherol concentrations in TRLs were analyzed and composite areas under the curve (AUCs) were calculated.

RESULTS:

The α-tocopherol 0- to 10-h AUCs (AUCs0-10 h) in TRLs was higher (P < 0.05) for the HE trial (least-squares mean ± SE: 981 ± 162 nmol/L ⋅ 10 h) than for the LE (311 ± 162 nmol/L ⋅ 10 h) and CON (117 ± 162 nmol/L ⋅10 h) trials, which did not differ from one another. The γ-tocopherol AUCs0-10 h in TRLs was also higher (P < 0.05) for the HE trial (402 ± 54 nmol/L ⋅ 10 h) than for the CON trial (72 ± 54 nmol/L ⋅ 10 h).

CONCLUSION:

The consumption of cooked whole eggs is an effective way to increase the absorption of α-tocopherol and γ-tocopherol from a co-consumed meal that naturally contains vitamin E, such as a raw mixed-vegetable salad, in healthy young men. This trial was registered at clinicaltrials.gov as NCT01951313.

KEYWORDS:

eggs; triacylglycerol-rich lipoprotein fractions; vegetable salad; α-tocopherol absorption; γ-tocopherol absorption

PMID:
27655756
PMCID:
PMC5086793
[Available on 2017-11-01]
DOI:
10.3945/jn.116.236307
[Indexed for MEDLINE]

Conflict of interest statement

2 Author disclosures: JE Kim, MG Ferruzzi, and WW Campbell, no conflicts of interest. Representatives from the American Egg Board–Egg Nutrition Center had no influence on the design, implementation, analysis, or interpretation of data for this investigator-initiated study.

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