A Preliminary Study of a Peruvian Diet Using Dietary Analysis and Hair Mineral Content as Indicators
- 262 Downloads
Observations among former American residents living long-term in Peru suggested that hair health improved while in Peru. To determine if a Peruvian diet correlates with hair composition, dietary intake of nutrients and mineral content of hair were measured among Peruvian and matched US residents. Selected foods from Peru were also analyzed for mineral and antioxidant content and compared with equivalent foods available in the USA. Statistically significant differences between Peruvian and US residents’ hair were found for sodium (decreased in Peru, p = 0.007) and vanadium (decreased in Peru, p = 0.03). Differences in hair composition between residencies may be explained by lower dietary sodium and vanadium intake among Peruvian residents or by lower concentrations of these minerals in Peruvian drinking water. Many significant mineral differences were also identified between Peruvian foods and their US equivalents. Although no statistically significant correlations between dietary intake and hair mineral content were found, results indicate that a Peruvian diet contributes differently to hair composition than a US diet. More research is needed to elucidate the link between a Peruvian diet and specific aspects of hair health.
KeywordsPeru Hair Diet Minerals Antioxidants
The funding for this study was gratefully provided by Fisher Company (Salt Lake City, UT, USA), whose owner spent some time in Peru and made the initial observations. The authors thank the Environmental Analytical Laboratory at Brigham Young University for carrying out the mineral analysis of hair and food samples.
- 12.Semalty M (2011) Correlation in hair growth and antioxidant activity of some Himalayan medical plants. J Glob Pharma Technol 3:1–6Google Scholar
- 14.National Institutes of Health, Applied Research Program, National Cancer Institute (2010) Diet History Questionnaire II, Web Version. http://riskfactor.cancer.gov/dhq2/webquest/. Accessed 14 May 2013
- 15.National Cancer Institute, Applied Research Program (2010) DHQ Nutrient Database, dhq2.database.062510.csv. http://riskfactor.cancer.gov/dhq2/database/nutrient.html. Accessed 14 May 2013
- 16.National Cancer Institute, Applied Research Program (2012) Diet*Calc Analysis Program, Version 1.5.1. http://riskfactor.cancer.gov/dhq2/dietcalc/. Accessed 14 May 2013
- 18.Ryabukhin YS (1978) Activation analysis of hair as an indicator of contamination of man by environmental trace element pollutants. International Atomic Energy Agency, Report no. IAEA/RL/50, ViennaGoogle Scholar
- 20.American Association of Cereal Chemists (2000) Approved methods of the American Association of Cereal Chemists, 10th edn. American Association of Cereal Chemists, St. PaulGoogle Scholar
- 21.Johnson CM, Ulrich A (1959) Analytical methods for use in plant analysis. Calif Agric Exp Stn Bull 766:30–33Google Scholar
- 30.Kuyucak N, Chavez J, Castillo JR, Ruiz J (2003) Technical Feasibility Studies and Uses of Treated Acid Mine Drainage at Kingsmill Tunnel, Peru. Proceedings of the Sixth International Conference on Acid Rock Drainage, Cairns, Queensland, Australia, July 12–18Google Scholar