Research Studies
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September 4, 2024

The Benefits of Garlic on Blood Sugar and Cholesterol Levels

Written By
Medically Reviewed by
Updated On
October 31, 2024

Garlic, a staple in many kitchens, might be more powerful than you think. Known for its distinctive flavor and aroma, garlic has long been used in cooking and traditional medicine. But beyond its culinary uses, recent research highlights garlic's potential in managing serious health issues like diabetes and high cholesterol.

In 2024, a systematic review and meta-analysis published in Nutrients revealed that garlic can significantly impact blood sugar and cholesterol levels. This comprehensive study analyzed data from various randomized controlled trials, making a strong case for garlic as a natural remedy for these common health problems.

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About The Study

This study investigated garlic's effects on blood sugar and cholesterol levels to determine if it could help manage diabetes and high cholesterol. Researchers reviewed various studies where adults took garlic or a placebo.

Participants ranged from healthy adults to those with conditions like hyperlipidemia, type 2 diabetes, and hypertension. The diverse group included men and women aged 18 to 80 from countries such as Canada, Iran, Pakistan, India, and the United States. The interventions lasted a few weeks to a year to examine garlic's long-term effects.

It highlights how garlic supplementation can reduce fasting blood glucose levels, increase high-density lipoprotein cholesterol levels, decrease glycosylated hemoglobin levels, and lower both low-density lipoprotein and total cholesterol levels.

Key health indicators measured were fasting blood glucose (FBG), which shows blood sugar levels after fasting, and glycosylated hemoglobin (HbA1c), indicating long-term blood sugar control. Other indicators included:

  • Total cholesterol (TC)
  • Triglyceride (TG)
  • High-density lipoprotein cholesterol (HDL-C, good cholesterol)
  • Low-density lipoprotein cholesterol (LDL-C, bad cholesterol)

These metrics were crucial in assessing garlic's impact on blood sugar and lipid profiles. By analyzing these specific indicators, the researchers aimed to show how garlic supplementation could benefit metabolic health.

Key Findings of the Study

Garlic supplementation significantly reduced fasting blood glucose (FBG) levels and decreased glycosylated hemoglobin (HbA1c) levels, indicating better long-term blood sugar control. Additionally, garlic helped lower total cholesterol (TC) levels and lowered low-density lipoprotein cholesterol (LDL-C).

Garlic supplementation increased high-density lipoprotein cholesterol (HDL-C). However, it did not significantly affect triglyceride (TG) levels.

Significance of the Findings

Here's why the findings were important:

Reduction of Major Health Risks

High blood sugar and cholesterol levels are significant risk factors for diabetes and heart disease, which are prevalent health issues globally. The study's findings highlight garlic's potential to lower these risks.

Natural Alternative

The study suggests garlic may be a natural alternative to traditional medications for managing blood sugar and cholesterol. This is important because conventional drugs often have side effects, whereas garlic is generally well-tolerated.

Broad Health Implications

The positive impact on blood sugar and cholesterol levels means that garlic supplementation could benefit a wide range of individuals, from those with metabolic disorders to those seeking to maintain overall health.

Accessible Solution

Garlic is a widely available and cost-effective solution, making it accessible to people looking to improve their health naturally.

Clinical Application

Patients can add garlic to their diets or take garlic supplements to manage blood sugar and cholesterol levels. Practitioners should recommend these changes and monitor patients' progress. This preventive strategy can reduce the incidence of diabetes and heart disease.

How The Findings Can Be Implemented

Here are some tips for incorporating garlic:

Dietary Changes

Integrate garlic into your daily diet by adding it to dishes such as soups, stews, salads, and marinades, ensuring the use of fresh garlic for maximum health benefits.

Supplements

For those requiring higher doses, garlic supplements like capsules, tablets, or aged extracts can be used. Choosing high-quality supplements and consulting healthcare providers for appropriate dosages is essential.

Health Policies

Public health officials can include garlic in nutritional guidelines and promote its benefits through campaigns and educational programs. Government-supported research can further explore and validate garlic's health benefits.

Clinical Recommendations

Healthcare providers can recommend garlic as part of treatment plans for managing high blood sugar or cholesterol, offering a natural alternative or complement to traditional medications.

Limitations of the Study

Some trials had small sample sizes, limiting the generalizability of the findings. The short follow-up periods necessitate more extended research to understand long-term effects.Β 

Potential biases in data reporting, including selective reporting of positive results, need addressing. Different forms and dosages of garlic used in the studies led to inconsistent results, highlighting the need for standardized preparations.

More research is needed to confirm if the benefits of garlic are consistent across diverse populations. Some studies did not fully control for other factors influencing blood sugar and cholesterol levels, such as diet and physical activity.Β 

Long-term research is required to confirm findings and determine the most effective ways to use garlic for managing blood sugar and cholesterol levels.

Functional Medicine Labs for Assessing Blood Glucose and Cholesterol Levels

Maintaining optimal blood glucose and cholesterol levels is crucial for overall health and well-being. Functional medicine offers a proactive approach to monitoring these critical biomarkers, allowing you to take control of your health with precise and personalized testing options.Β 

Below are tests that can help you effectively monitor and manage these essential health indicators.

Glucose Testing

Monitoring blood glucose levels is crucial for understanding energy levels, preventing diabetes, and maintaining overall metabolic health.Β 

Here are some lab tests available through Rupa Health that provide detailed insights into your glucose metabolism:

Lipid Markers

Cholesterol levels are a critical factor in cardiovascular health, and different lipid markers provide insights into one’s risk of heart disease.Β 

Below are some essential cholesterol tests available through Rupa Health:

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Key Takeaways

  • Garlic has been shown to significantly reduce blood sugar and cholesterol levels, providing a natural alternative to traditional medications. This makes garlic a valuable addition to the diet for individuals looking to manage diabetes and cardiovascular health naturally.
  • Incorporating garlic into daily meals or taking garlic supplements can effectively harness these health benefits. Fresh garlic, garlic powder, and aged garlic extracts are all viable options for inclusion in a balanced diet.
  • While the current findings are promising, further research is necessary to determine garlic's most effective forms, dosages, and long-term benefits. This will help establish clear guidelines for its use in clinical practice and everyday health management.
The information in this article is designed for educational purposes only and is not intended to be a substitute for informed medical advice or care. This information should not be used to diagnose or treat any health problems or illnesses without consulting a doctor. Consult with a health care practitioner before relying on any information in this article or on this website.

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Lab Tests in This Article

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Christie, J. (2023, November 27). The Powerful Potential of Garlic in Diabetes Management. Rupa Health. https://www.rupahealth.com/post/the-powerful-potential-of-garlic-in-diabetes-management

Cloyd, J. (2022, October 4). 4 nutrition hacks that lower high cholesterol. Rupa Health. https://www.rupahealth.com/post/4-nutrition-hacks-to-lower-high-cholesterol

Cloyd, J. (2023a, July 5). Integrative Approaches to Managing High Blood Sugar: Specialty Testing, Lifestyle Modifications, and Natural Remedies. Rupa Health. https://www.rupahealth.com/post/integrative-approaches-to-managing-high-blood-sugar-testing-lifestyle-modifications-and-natural-remedies

Cloyd, J. (2023b, November 2). The Top 5 Therapeutic Uses of Garlic: From the Kitchen to the Medicine Cabinet. Rupa Health. https://www.rupahealth.com/post/the-top-5-therapeutic-uses-of-garlic-from-the-kitchen-to-the-medicine-cabinet

Cloyd, J. (2023c, December 1). A Functional Medicine Protocol For Balancing Blood Sugar. Rupa Health. https://www.rupahealth.com/post/a-functional-medicine-protocol-for-balancing-blood-sugar

Cloyd, J. (2024, June 28). High Cholesterol: Causes, Implications, and Effective Management Strategies. Rupa Health. https://www.rupahealth.com/post/high-cholesterol-causes-implication

Fasting glucose. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/fasting-glucose

Glucose by Boston heart diagnostics. (2020). Rupa Health. https://www.rupahealth.com/lab-tests/bostonheart-glucose-5a336

Glucose, fasting by access LabCorp draw. (2020). Rupa Health. https://www.rupahealth.com/lab-tests/labcorp-glucose-fasting

HbA1c by Empire City Laboratories Inc. (2020). Rupa Health. https://www.rupahealth.com/lab-tests/empire-city-labs-hba1c

Hemoglobin A1C. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/hba1c

Henry, E. (2022, January 19). 3 ways to lower your cholesterol without medication. Rupa Health. https://www.rupahealth.com/post/a-functional-medicine-approach-to-treating-high-cholesterol

High-density lipoprotein cholesterol. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/hdl

Kresge, K. (2022, May 20). 3 natural ways to lower cholesterol levels. Rupa Health. https://www.rupahealth.com/post/natural-treatments-for-high-cholesterol

Low-density lipoprotein cholesterol. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/ldl

Neibling, K. (2023, April 26). Complementary and integrative medicine treatments for hypertension and cardiovascular disease. Rupa Health. https://www.rupahealth.com/post/complementary-and-integrative-medicine-treatments-for-hypertension-and-cardiovascular-disease

Total cholesterol. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/total-cholesterol-d8055

Triglycerides. (n.d.). Rupa Health. https://www.rupahealth.com/biomarkers/triglycerides

Yoshimura, H. (2023, November 7). The remarkable power of exercise on our health: A comprehensive overview. Rupa Health. https://www.rupahealth.com/post/the-remarkable-power-of-exercise-on-our-health-a-comprehensive-overview

Zhao, X., Cheng, T., Xia, H., Yang, Y., & Wang, S. (2024). Effects of Garlic on Glucose Parameters and Lipid Profile: A Systematic Review and Meta-Analysis on Randomized Controlled Trials. Nutrients, 16(11), 1692. https://doi.org/10.3390/nu16111692

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