Protective Role of Co-administration of Vitamin D in Monosodium Glutamate Induced Obesity in Female Rats

J Natl Med Assoc. 2018 Feb;110(1):98-102. doi: 10.1016/j.jnma.2017.03.006. Epub 2017 Apr 14.

Abstract

Purpose: Obesity in females is an emerging health problem. The consumption of MSG has been considered as a risk factor for obesity. The tastemakers in Chinese and fast foods, such as fish sauce and soy sauce, contain very high levels of glutamate. The deficiency of Vitamin D is associated with obesity and metabolic syndrome. Therefore, the present study aimed to determine the effect of co-administration of Vitamin D on body weight control in MSG-induced obese rats.

Methods: Eighteen adult female Wistar rats were randomly divided into three groups equally. The first group (Group I) was treated with saline served as the control; the second group (Group II) received a daily oral dose of 5 g/kg Body weight of MSG; the third group (Group III) received the same dose of MSG along with calcitriol (0.2 mcg/kg BW) for 15 days.

Results: The body weight, food, and water intake were measured. MSG treated rats showed a significant increase (P < 0.001) in the body weight, food, and water intake but significant decrease (P < 0.001) was observed in the rats treated with MSG along with Vitamin D.

Conclusion: Ingestion of Vitamin D suppresses body weight gain in MSG-induced obese rats. Active agents in Vitamin D are useful for the prevention and treatment of obesity. Foods tested with high glutamate levels can be fortified with minute quantities of calcitriol to combat the adverse effects without compromising on the taste of the food processed. The fortification of junk foods might also combat largely prevalent Vitamin D deficiency in India.

Keywords: Body weight; Calcitriol; Food; Monosodium glutamate; Obesity; Vitamin D; Water; Wistar rats.

MeSH terms

  • Administration, Oral
  • Animals
  • Body Mass Index
  • Disease Models, Animal
  • Dose-Response Relationship, Drug
  • Female
  • Obesity* / chemically induced
  • Obesity* / drug therapy
  • Random Allocation
  • Rats
  • Rats, Wistar
  • Sodium Glutamate / toxicity
  • Treatment Outcome
  • Vitamin D* / administration & dosage
  • Vitamins / administration & dosage

Substances

  • Sodium Glutamate
  • Vitamin D
  • Vitamins