September 18, 2019

10 Proven Health Benefits of Garlic

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“Let food be thy medicine, and medicine be thy food.”

Those are famous words from the ancient Greek physician Hippocrates, often called the father of Western medicine. He actually used to prescribe garlic to treat a variety of medical conditions.

Here are the health benefits of garlic supported by Human research:

1. Garlic Contains Compounds With Potent Medicinal Properties

Garlic is a plant in the onion family that’s grown for its distinctive taste and health benefits. It contains sulfur compounds, which are believed to bring some of the health benefits.

Garlic is a plant in the onion family that’s grown for its distinctive taste and health benefits. It contains sulfur compounds, which are believed to bring some of the health benefits.

2. Garlic Is Highly Nutritious But Has Very Few Calories

Calorie for calorie, garlic is incredibly nutritious.

A 1-ounce (28-gram) serving of garlic contains.

  • Manganese: 23% of the RDA
  • Vitamin B6: 17% of the RDA
  • Vitamin C: 15% of the RDA
  • Selenium: 6% of the RDA
  • Fiber: 0.6 grams
  • Decent amounts of calcium, copper, potassium, phosphorus, iron and vitamin B1

Garlic also contains trace amounts of various other nutrients. In fact, it contains a little bit of almost everything you need.

This comes with 42 calories, 1.8 grams of protein and 9 grams of carbs.

Garlic is low in calories and rich in vitamin C, vitamin B6 and manganese. It also contains trace amounts of various other nutrients.

3. Garlic Can Combat Sickness, Including the Common Cold

Garlic supplements are known to boost the function of the immune system.

One large, 12-week study found that a daily garlic supplement reduced the number of colds by 63% compared to a placebo (6).

The average length of cold symptoms was also reduced by 70%, from 5 days in the placebo group to just 1.5 days in the garlic group.

Another study found that a high dose of aged garlic extract (2.56 grams per day) reduced the number of days sick with cold or flu by 61% (7).

However, one review concluded that the evidence is insufficient and more research is needed (8).

Despite the lack of strong evidence, adding garlic to your diet may be worth trying if you often get colds.

Garlic supplements help prevent and reduce the severity of common illnesses like the flu and common cold.

4. The Active Compounds in Garlic Can Reduce Blood Pressure

Cardiovascular diseases like heart attacks and strokes are the world’s biggest killers.

High blood pressure, or hypertension, is one of the most important drivers of these diseases.

Human studies have found garlic supplements to have a significant impact on reducing blood pressure in people with high blood pressure.

In one study, 600–1,500 mg of aged garlic extract was just as effective as the drug Atenolol at reducing blood pressure over a 24-week period.

Supplement doses must be fairly high to have the desired effects. The amount needed is equivalent to about four cloves of garlic per day.

High doses of garlic appear to improve blood pressure for those with known high blood pressure (hypertension). In some instances, supplements may be as effective as regular medications.

5. Garlic Improves Cholesterol Levels, Which May Lower the Risk of Heart Disease

For those with high cholesterol, garlic supplements appear to reduce total and/or LDL cholesterol by about 10–15%.

High triglyceride levels are another known risk factor for heart disease, but garlic seems to have no significant effects on triglyceride levels.

Garlic supplements seem to reduce total and LDL cholesterol, particularly in those who have high cholesterol. HDL cholesterol and triglycerides do not seem to be affected.

6. Garlic Contains Antioxidants That May Help Prevent Alzheimer’s Disease and Dementia

Oxidative damage from free radicals contributes to the aging process.

Garlic contains antioxidants that support the body’s protective mechanisms against oxidative damage.

High doses of garlic supplements have been shown to increase antioxidant enzymes in humans, as well as significantly reduce oxidative stress in those with high blood pressure.

The combined effects on reducing cholesterol and blood pressure, as well as the antioxidant properties, may reduce the risk of common brain diseases like Alzheimer’s disease and dementia.

Garlic contains antioxidants that protect against cell damage and aging. It may reduce the risk of Alzheimer’s disease and dementia.

7. Garlic May Help You Live Longer

The potential effects of garlic on longevity are basically impossible to prove in humans.

But given the beneficial effects on important risk factors like blood pressure, it makes sense that garlic could help you live longer.

The fact that it can fight infectious disease is also an important factor, because these are common causes of death, especially in the elderly or people with dysfunctional immune systems.

Garlic has known beneficial effects on common causes of chronic disease, so it makes sense that it could also help you live longer.

8. Athletic Performance Might Be Improved With Garlic Supplements

Garlic was one of the earliest “performance enhancing” substances.

It was traditionally used in ancient cultures to reduce fatigue and enhance the work capacity of laborers.

Most notably, it was given to Olympic athletes in ancient Greece.

Rodent studies have shown that garlic helps with exercise performance, but very few human studies have been done.

People with heart disease who took garlic oil for 6 weeks had a 12% reduction in peak heart rate and better exercise capacity.

Other studies suggest that exercise-induced fatigue may be reduced with garlic.

Garlic may improve physical performance in lab animals and people with heart disease. Benefits in healthy people are not yet conclusive.

9. Eating Garlic May Help Detoxify Heavy Metals in the Body

At high doses, the sulfur compounds in garlic have been shown to protect against organ damage from heavy metal toxicity.

A four-week study in employees of a car battery plant (excessive exposure to lead) found that garlic reduced lead levels in the blood by 19%. It also reduced many clinical signs of toxicity, including headaches and blood pressure.

Three doses of garlic each day even outperformed the drug D-penicillamine in reducing symptoms.

Garlic was shown to significantly reduce lead toxicity and related symptoms in one study.

10. Garlic May Improve Bone Health

No human studies have measured the effects of garlic on bone loss.

However, rodent studies have shown that it can minimize bone loss by increasing estrogen in females.

One study in menopausal women found that a daily dose of dry garlic extract (equal to 2 grams of raw garlic) significantly decreased a marker of estrogen deficiency.

This suggests that this supplement may have beneficial effects on bone health in women.

Foods like garlic and onions may also have beneficial effects on osteoarthritis.

Garlic appears to have some benefits for bone health by increasing estrogen levels in females, but more human studies are needed.

 

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