Effects of Dietary Habits and Nutrient Intakes on Skin Condition of Female University Students

Hyun-Ju Jo; Mi-Ja Choi

doi:10.4163/kjn.2010.43.3.233

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Jo and Choi: Effects of Dietary Habits and Nutrient Intakes on Skin Condition of Female University Students

Research Article

Korean Journal of Nutrition

Korean Journal of Nutrition 2010; 43(3): 233-245.

Published online: 30 June 2010

DOI: https://doi.org/10.4163/kjn.2010.43.3.233

Effects of Dietary Habits and Nutrient Intakes on Skin Condition of Female University Students

Hyun-Ju Jo¹, Mi-Ja Choi²

¹Department of Health and Medicinal Food, World Cyber College, Kwangjoo 464-895, Korea.

²Department of Food and Nutrition, Keimyung University, Daegu 704-701, Korea.

To whom correspondence should be addressed. (hjjoworld@hanmail.net)

Received 25 May 2010 Revised 5 June 2010 Accepted 7 June 2010

Abstract

The purpose of this study was to investigate the effects of dietary habits and nutrient intakes on skin condition of female university students. The subjects were 95 female university students in Daegu. This study examined anthropometric measurements, dietary intake, food intake habits and skin condition (moisture, elasticity, sebum (U-zone, T-zone), pores, evenness and melanin pigmentation. The subjects in this study had an average age of 21.4, an average height and weight of 161.2 cm and 52.9 kg, respectively, and the average body mass index (BMI) was 20.3 kg/m². The means of skin elasticity, pores, evenness, and melanin pigmentation were within the normal range of women in their 20s and the skin moisture state was slightly lower than the normal range, which showed a dry tendency. The sebum in the U-zone and the T-zone was lower than the standard values, which showed less secretion in both areas. The subjects with high nut intake showed a better skin pore state (p < 0.05). Those with a high intake of instant foods showed a sig-nificantly low skin moisture and a significantly higher sebum rate (p < 0.05). The group with high skin elasticity and the group with less melanin pigmentation showed a significantly low animal protein intake (p < 0.05). The group with high skin elasticity also showed a significantly higher vitamin A and niacin intakes as well (p < 0.05). The group with high skin evenness showed a significantly lower animal lipid intake and a significantly higher vitamin E intake (p < 0.05). In addition, those with high skin elasticity and evenness as well as low melanin pigmentation showed a tendency of high intake of antioxidant vitamins, such as vitamin A, carotene, vitamin C or vitamin E. In summary, a moderate intake of plant-based products and also the antioxidant vitamins within such products seems to have a beneficial effect on maintaining a healthy and good skin condition.

Keywords: nutrient intake, skin moisture, skin elasticity, skin evenness, skin melanin, female university student

Figures and Tables

Table 1

General characteristics of the subjects

1) Body Mass Index

Table 2

Mean skin health status of the subjects

Table 3

Skin health status of the subjects according to total water intake frequency

1) Mean ± SD.

2) NS: Not significantly different at p < 0.05 by Student's t-test

3) ^*: significantly different at p < 0.05 by Student's t-test.

Table 4

Skin health status of the subjects according to pure water intake frequency

1) Mean ± SD

Table 5

Skin health status of the subjects according to nuts intake habit

1) Mean ± SD

2) Values with different superscripts within the row are significantly different at p < 0.05 by Duncan's multiple range test

Table 6

Skin health status of the subjects according to instant food intake habit

1) Mean ± SD

2) Values with different superscripts within the row are significantly different at p < 0.05 by Duncan's multiple range test

Table 7

Skin health status of the subjects according to vitamin supplements intake

1) Mean ± SD

2) NS: Not significantly different at p < 0.05 by Student's t-test

Table 8

Mean daily energy and nutrient intakes of subjects by 24-hour recall method

1) Mean ± SD

2) EER: estimated energy requirements, Dietary Reference Intakes (DRI) for Koreans, 2005

3) RI: recommended Intake, DRIs for Koreans, 2005

4) AI: adequate Intake, DRIs for Koreans, 2005

Table 9

Daily energy and nutrient intakes by skin moisture status of subjects

1) Mean ± SD

2) NS: not significantly different at p < 0.05 by Student's t-test

Table 10

Daily energy and nutrient intakes by skin elasticity status of subjects

1) Mean ± SD

2) NS: not significantly different at p < 0.05 by Student's t-test

3) ^*: significantly different at p < 0.05 by t-test

Table 11

Daily energy and nutrient intakes by skin evenness status of subjects

1) Mean ± SD

2) NS: not significantly different at p < 0.05 by Student's t-test

3) ^*: significantly different at p < 0.05 by Student's t-test

4) SFA: saturated fatty acid

5) MUFA: mono unsaturated fatty acid

6) PUFA: poly unsaturated fatty acid

Table 12

Daily energy and nutrient intakes by skin melanin pigmentation status of subjects

1) Mean ± SD.

2) NS: not significantly different at p < 0.05 by Student's t-test.

3) ^*: significantly different at p < 0.05 by Student's t-test.

Notes

This study was supported by the World Cyber College research grant, 2007.

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