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GLV supplements increased plasma beta-carotene, vitamin C, zinc and hemoglobin in young healthy adults.
Eur J Nutr 2006; 45(1):29-36EJ

Abstract

BACKGROUND

Green leafy vegetables (GLV) are rich sources of beta-carotene, iron and other micronutrients. Our in vitro studies have demonstrated good antioxidant potential in GLV. Moreover linkages of GLV intakes with plasma retinol and ascorbic acid were seen in apparently healthy Indians.

AIM OF THE STUDY

To investigate the effect of GLV as a natural fortificant of multiple micronutrients through a prospective human trial.

METHODS

Short-term (0-4 h) response (AUC) of single dose of 7.9 mg beta-carotene and 130 mg ascorbic acid through a spinach-carrot meal against the standard meal without GLV plus10 mg beta-carotene and 150 mg ascorbic acid tablets was studied in two groups of 4 young volunteers each. In the second trial of 3 weeks' supplementation, 5 groups of young adults (n = 40) were given either 100 g GLV/day alone or with tablets of vitamin E (100 mg/day), or C (100 mg/day) or more oil (5 g/day) or non-GLV meal with tablet of beta-carotene (10 mg/day). Hemoglobin (Hb), plasma beta-carotene, zinc, vitamin C, glucose, and triglycerides were measured.

RESULTS

In a postprandial response, AUC were comparable in both GLV and standard meals for beta-carotene and ascorbic acid. In case of triglycerides and glucose AUC the GLV meal showed a better recovery to the baseline value after 4 hours than the standard meal. Three weeks' supplementation of GLV with more oil resulted in significant increase of plasma beta-carotene (51%) and Hb (9%). GLV with vitamin E showed a significant increase in plasma beta-carotene (40%), Hb (8%) and plasma vitamin C (6%). Supplementing beta-carotene without GLV significantly increased Hb (11%), plasma zinc (14%) in addition to beta-carotene. Multiple regression analyses weighted for energy intake indicated a significant association of percent increase in Hb with intakes of iron, riboflavin, folic acid, beta-carotene, copper, phytate and fiber (p < 0.01), percent change in plasma zinc with intakes of zinc, beta-carotene, vitamin C, riboflavin, copper, iron, and thiamin (p < 0.01), percent change in vitamin C with intakes of vitamin C, vitamin E, niacin, riboflavin, thiamin, beta-carotene, zinc, phytate and fiber (p < 0.05) and percent change in plasma beta-carotene with intakes of beta-carotene, thiamin, folic acid, zinc, phytate and tannins (p < 0.05).

CONCLUSION

Using 100 g GLV/day with 10 g oil could be a single moderate strategy for supplementation of iron, beta-carotene, ascorbic acid and zinc.

Authors+Show Affiliations

Agharkar Research Institute, G. G. Agarkar Road, Pune 411004, India. vaishaliagte@hotmail.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15834756

Citation

Agte, Vaishali, et al. "GLV Supplements Increased Plasma Beta-carotene, Vitamin C, Zinc and Hemoglobin in Young Healthy Adults." European Journal of Nutrition, vol. 45, no. 1, 2006, pp. 29-36.
Agte V, Jahagirdar M, Chiplonkar S. GLV supplements increased plasma beta-carotene, vitamin C, zinc and hemoglobin in young healthy adults. Eur J Nutr. 2006;45(1):29-36.
Agte, V., Jahagirdar, M., & Chiplonkar, S. (2006). GLV supplements increased plasma beta-carotene, vitamin C, zinc and hemoglobin in young healthy adults. European Journal of Nutrition, 45(1), pp. 29-36.
Agte V, Jahagirdar M, Chiplonkar S. GLV Supplements Increased Plasma Beta-carotene, Vitamin C, Zinc and Hemoglobin in Young Healthy Adults. Eur J Nutr. 2006;45(1):29-36. PubMed PMID: 15834756.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - GLV supplements increased plasma beta-carotene, vitamin C, zinc and hemoglobin in young healthy adults. AU - Agte,Vaishali, AU - Jahagirdar,Madhavi, AU - Chiplonkar,Shashi, Y1 - 2005/04/20/ PY - 2004/08/18/received PY - 2005/02/02/accepted PY - 2005/4/19/pubmed PY - 2006/8/29/medline PY - 2005/4/19/entrez SP - 29 EP - 36 JF - European journal of nutrition JO - Eur J Nutr VL - 45 IS - 1 N2 - BACKGROUND: Green leafy vegetables (GLV) are rich sources of beta-carotene, iron and other micronutrients. Our in vitro studies have demonstrated good antioxidant potential in GLV. Moreover linkages of GLV intakes with plasma retinol and ascorbic acid were seen in apparently healthy Indians. AIM OF THE STUDY: To investigate the effect of GLV as a natural fortificant of multiple micronutrients through a prospective human trial. METHODS: Short-term (0-4 h) response (AUC) of single dose of 7.9 mg beta-carotene and 130 mg ascorbic acid through a spinach-carrot meal against the standard meal without GLV plus10 mg beta-carotene and 150 mg ascorbic acid tablets was studied in two groups of 4 young volunteers each. In the second trial of 3 weeks' supplementation, 5 groups of young adults (n = 40) were given either 100 g GLV/day alone or with tablets of vitamin E (100 mg/day), or C (100 mg/day) or more oil (5 g/day) or non-GLV meal with tablet of beta-carotene (10 mg/day). Hemoglobin (Hb), plasma beta-carotene, zinc, vitamin C, glucose, and triglycerides were measured. RESULTS: In a postprandial response, AUC were comparable in both GLV and standard meals for beta-carotene and ascorbic acid. In case of triglycerides and glucose AUC the GLV meal showed a better recovery to the baseline value after 4 hours than the standard meal. Three weeks' supplementation of GLV with more oil resulted in significant increase of plasma beta-carotene (51%) and Hb (9%). GLV with vitamin E showed a significant increase in plasma beta-carotene (40%), Hb (8%) and plasma vitamin C (6%). Supplementing beta-carotene without GLV significantly increased Hb (11%), plasma zinc (14%) in addition to beta-carotene. Multiple regression analyses weighted for energy intake indicated a significant association of percent increase in Hb with intakes of iron, riboflavin, folic acid, beta-carotene, copper, phytate and fiber (p < 0.01), percent change in plasma zinc with intakes of zinc, beta-carotene, vitamin C, riboflavin, copper, iron, and thiamin (p < 0.01), percent change in vitamin C with intakes of vitamin C, vitamin E, niacin, riboflavin, thiamin, beta-carotene, zinc, phytate and fiber (p < 0.05) and percent change in plasma beta-carotene with intakes of beta-carotene, thiamin, folic acid, zinc, phytate and tannins (p < 0.05). CONCLUSION: Using 100 g GLV/day with 10 g oil could be a single moderate strategy for supplementation of iron, beta-carotene, ascorbic acid and zinc. SN - 1436-6207 UR - https://www.unboundmedicine.com/medline/citation/15834756/GLV_supplements_increased_plasma_beta_carotene_vitamin_C_zinc_and_hemoglobin_in_young_healthy_adults_ L2 - https://dx.doi.org/10.1007/s00394-005-0559-6 DB - PRIME DP - Unbound Medicine ER -