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African Journal of Food, Agriculture, Nutrition and Development
Rural Outreach Program
ISSN: 1684-5358
EISSN: 1684-5358
Vol. 8, No. 3, 2008, pp. 349-357
Bioline Code: nd08031
Full paper language: English
Document type: Research Article
Document available free of charge

African Journal of Food, Agriculture, Nutrition and Development, Vol. 8, No. 3, 2008, pp. 349-357

 en Effects Of Fruits And Vegetables On Electrolytes And Blood Pressure Of Hypertensive Patients Seen In Nigeria
Idogun, E.S.; Famodu, A.A.; Olasunkanmi, L.A.; Osilesi, O. & Adebawo, O.O.


High-fruit and high-vegetable diets are known to have ameliorating effects on many diseases and their complications. The objective of this study was to assess the effects of high fruit and high vegetable diets on the electrolytes and blood pressure of hypertensive patients. This experimental study was conducted at Olabisi Onabanjo University Teaching Hospital (formerly Ogun State University), Ogun state, Nigeria. Twenty five hypertensive volunteers from among hypertensive clinic attendees were recruited into the study. They were taught how to prepare two serves of vegetables and fruit (approximately 500g diced fruit salad) per day and were encouraged to consume the serves on daily basis from week one through to week ten. Baseline and bi-weekly assessment of plasma electrolytes, such as sodium, potassium, chloride and bicarbonate was carried out on the patients. Anthropometric measurements and blood pressure were also assessed biweekly on the patients during their routine clinic attendance. There was a gradual reduction in plasma sodium and chloride concentrations as well as the blood pressure which became significant in week ten. The mean baseline plasma sodium reduced significantly from 139.0 ± 0.9mmo/L to 137.5 ± 0.9mml/L, P > 0.001 after ten weeks of high fruit and high vegetable diets. Plasma chloride also reduced from baseline value of 103.2 ± 2.5mmol/L to 98.8 ± 0.7mmol/L, P > 0.0001. But the plasma potassium improved from 3.64 ± 0.2mmol/L at baseline to 3.9 ± 0.4mmol/L at week ten, P = 0.0357. The mean systolic blood pressure also dropped from the baseline value of 155.3± 7.6mmHg to 141 ± 2.4 mmHg, P > 0.0001. Also reduced was the mean diastolic blood pressure from 89.3 ± 7.6mmHg to 88.0 ± 2.4, at week ten. However, the plasma bicarbonate and BMI did not charge significantly throughout the study period. High-fruit and high-vegetable diets appear to have an ameliorating effect on the blood pressure of hypertensive patients. This may be beneficial and complementary in the management of hypertension.

Hypertension, Fruits and Vegetables, Electrolytes.

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