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Impact of Tigernuts on Blood Glucose and Insulin Levels in Normal Weight Male Humans Edokpolor N, Igbinovia; Ohiwerei Wisdom O; Blackie Okosun H; Edebiri Ogbemudia E; Otaye Micheal O; Ohiwerei Faith O
International Journal of Applied and Scientific Research Vol. 2 No. 11 (2024): November 2024
Publisher : MultiTech Publisher

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Abstract

Tigernuts contain bioactive compounds such as sterols, alkaloids, tannins, saponins, resins, and vitamins E and C. This study examined their effects on blood glucose and insulin levels in normal-weight male subjects under resting conditions. Methods: Forty non-habitual tigernut chewers, aged 18–28 years, participated. After recording anthropometric data, subjects rested for 90 minutes. Blood glucose levels were measured using the enzymatic method of Barham and Trinder with a glucometer. Insulin levels were assessed using the ELISA Teco kit following Tiez and Andresen's method. On a separate day, the same subjects consumed 5g of tigernuts as a bolus, followed by 50ml of water. After another 90-minute rest, blood glucose and insulin levels were reassessed. Statistical analysis was conducted using GraphPad Prism Version 8.1. Results: Tigernut consumption led to a slight reduction in blood glucose levels (92.66 ± 2.156 to 89.61 ± 1.907 mg/dl), though not statistically significant. However, insulin levels showed a significant decrease (P<0.05, 4.220 ± 0.297 to 1.705 ± 0.061 µg/ml). Conclusion: Tigernuts demonstrated both blood glucose and insulin-lowering effects in normal-weight male subjects
Influence of Tigernuts on the Antioxidant Vitamins Levels in Normal Weight Male Human Subjects Edokpolor N, Igbinovia; Wisdom O, Ohiwerei; Festus Oloruntoba O; Onokevbagbe Elisha I; Adisa W A
International Journal of Applied and Scientific Research Vol. 2 No. 11 (2024): November 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tubers have been recognized as a valuable source of essential macro- and micronutrients vital for overall health. Among these, tigernut has been gaining popularity due to its rich composition. This tuber contains bioactive compounds such as sterols, alkaloids, tannins, saponins, resins, and vitamins E and C. Natural antioxidants have attracted significant attention from nutritionists, food manufacturers, medical professionals, and consumers due to their numerous health benefits. This study aimed to examine the effect of tigernuts on human vitamin A, C, and E levels in normal-weight male subjects under resting conditions, as well as to explore potential mechanisms of action. Methods: The study involved forty (40) male participants who were non-habitual tigernut consumers, aged 18–28 years. Anthropometric data were recorded for control subjects, who then rested for 1 hour and 30 minutes. Serum vitamin C levels were analyzed using a spectrophotometric method, with ascorbic acid showing maximum absorption at 478.5 nm in methanolOn a separate day, each participant was given 5g of tigernut to chew as a bolus, with the same subjects serving as both control and test participants.The findings revealed that tigernut consumption significantly increased (P < 0.05) vitamin E levels from 0.09573 ± 0.021 to 0.8430 ± 0.057 mg/%. In contrast, vitamin A levels significantly decreased (P < 0.05) from 291.8 ± 29.50 to 97.89 ± 32.36 mg/%. Vitamin C levels also declined post-consumption, from 1.586 ± 0.201 to 1.188 ± 0.080 mg/%, though this decrease was not statistically significant.The results suggest that tigernut consumption enhances vitamin E levels while reducing both vitamin A and C levels in normal-weight male subjects