Effect of Moringa Leaf Powder Supplementation on Serum Cholesterol and Antioxidant Enzyme Activity among Adults in Osun State

Effect of Moringa Leaf Powder Supplementation on Serum Cholesterol and Antioxidant Enzyme Activity among Adults in Osun State

Abstract

Moringa oleifera, known as the “miracle tree,” is widely recognized for its nutritional richness and therapeutic properties. This study assessed how moringa leaf powder supplementation influences serum cholesterol levels and antioxidant enzyme activity among adults in Osun State, Nigeria. Participants were divided into two groups—one received daily moringa leaf powder for eight weeks, while the other maintained their regular diet.

Blood samples were collected at the start and end of the study. The samples were analyzed for total cholesterol, LDL, HDL, triglycerides, and antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). Results revealed a clear decrease in total cholesterol and LDL, alongside an increase in HDL and antioxidant enzyme levels among the supplemented participants.

These findings indicate that moringa leaf powder supports cholesterol regulation and oxidative stress reduction. Therefore, adding moringa to daily meals could serve as a natural, affordable, and effective intervention for improving cardiovascular health and strengthening antioxidant defense in adults.

CHAPTER ONE

1.0 Introduction

Cardiovascular diseases are a leading cause of death worldwide. High blood cholesterol and oxidative stress play major roles in their development. Poor diets, sedentary lifestyles, and limited antioxidant intake often contribute to these health problems. Over time, these conditions increase the risk of heart attacks, strokes, and other chronic diseases.

Recently, there has been growing interest in plant-based remedies that can help maintain healthy cholesterol levels and reduce oxidative stress. Among these plants, Moringa oleifera stands out because it contains vitamins, flavonoids, and essential minerals that promote antioxidant activity and lipid balance. Consuming moringa may therefore improve health and prevent diseases linked to poor cholesterol control and oxidative damage.

1.1 Background of the Study

Moringa oleifera is widely cultivated in Nigeria and valued for its nutritional, medicinal, and economic importance. Its leaves are rich in vitamin C, beta-carotene, and polyphenols, which help reduce lipid peroxidation and strengthen antioxidant defense systems. Studies across various populations show that moringa supplementation can lower total cholesterol, increase HDL, and enhance antioxidant activity.

However, little is known about its specific effects among adults in Osun State, where dietary patterns and environmental factors differ. Understanding how moringa impacts serum lipid profile and antioxidant enzymes locally will provide useful insights for public health nutrition and disease prevention programs.

1.2 Statement of the Problem

The rising cases of high cholesterol, oxidative stress, and related heart conditions remain a public health challenge in Nigeria. Many individuals rely heavily on high-fat foods and processed meals but consume few natural antioxidants. As medical treatments can be costly, exploring safe and low-cost natural supplements becomes necessary.

Although moringa leaf powder is affordable and available, scientific data on its biochemical impact within the Osun State population remain scarce. This study addresses that gap by assessing the effects of moringa supplementation on cholesterol and antioxidant enzyme activity.

1.3 Aim and Objectives

The aim of this study is to determine how moringa leaf powder supplementation influences serum cholesterol and antioxidant enzyme activity in adults living in Osun State.

Specific objectives include:

1. To measure the effects of moringa on serum total cholesterol, LDL, HDL, and triglyceride levels.

2. To assess changes in antioxidant enzymes (SOD, CAT, GPx) after moringa supplementation.

3. To compare lipid and enzyme activity between the supplemented group and the control group.

4. To examine the relationship between cholesterol levels and antioxidant enzyme activity among adults in the study population.

1.4 Significance of the Study

This research provides evidence on how moringa leaf powder can enhance lipid metabolism and antioxidant defenses. The results can guide health practitioners, dietitians, and policymakers in promoting moringa as a natural supplement for preventing cardiovascular diseases.

Additionally, encouraging moringa cultivation and use can improve community nutrition, reduce healthcare costs, and support sustainable agricultural practices. The findings will also add to existing scientific literature on the biochemical benefits of local medicinal plants.

1.5 Scope of the Study

This study focuses on adults in Osun State who are not on medication for chronic diseases. It covers the biochemical analysis of blood samples taken before and after moringa supplementation, emphasizing lipid profile and antioxidant enzyme activity.

1.6 Definition of Key Terms

• Moringa Leaf Powder: Dried and ground leaves of Moringa oleifera, rich in nutrients and antioxidants.

• Serum Cholesterol: The amount of cholesterol circulating in the bloodstream.

• Antioxidant Enzymes: Molecules such as SOD, CAT, and GPx that protect the body from oxidative damage.

• Oxidative Stress: A harmful condition caused by an imbalance between free radicals and antioxidants.

• Supplementation: The addition of nutrients or compounds to improve health or correct deficiencies.