6 Science-Based Health Benefits of Eating Vegan

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Vegan diets are known to help people lose weight.

However, they also offer an array of additional health benefits.

For starters, a vegan diet may help you maintain a healthy heart.

What’s more, this diet may offer some protection against type 2 diabetes and certain cancers.

Here are 6 science-based benefits of vegan diets.

 

If you switch to a vegan diet from a typical Western diet, you’ll eliminate meat and animal products.

This will inevitably lead you to rely more heavily on other foods. In the case of a whole-foods vegan diet, replacements take the form of whole grains, fruits, vegetables, beans, peas, nuts and seeds.

Since these foods make up a larger proportion of a vegan diet than a typical Western diet, they can contribute to a higher daily intake of certain beneficial nutrients.

For instance, several studies have reported that vegan diets tend to provide more fiber, antioxidants and beneficial plant compounds. They also appear to be richer in potassium, magnesium, folate and vitamins A, C and E (1Trusted Source, 2Trusted Source, 3Trusted Source, 4Trusted Source).

However, not all vegan diets are created equal.

For instance, poorly planned vegan diets may provide insufficient amounts of essential fatty acids, vitamin B12, iron, calcium, iodine or zinc (5Trusted Source).

That’s why it’s important to stay away from nutrient-poor, fast-food vegan options. Instead, base your diet around nutrient-rich whole plants and fortified foods. You may also want to consider supplements like vitamin B12.

2. It Can Help You Lose Excess Weight

An increasing number of people are turning to plant-based diets in the hope of shedding excess weight.

This is perhaps for good reason.

Many observational studies show that vegans tend to be thinner and have lower body mass indexes (BMIs) than non-vegans (6Trusted Source, 7Trusted Source).

In addition, several randomized controlled studies — the gold standard in scientific research — report that vegan diets are more effective for weight loss than the diets they are compared to

In one study, a vegan diet helped participants lose 9.3 lbs (4.2 kg) more than a control diet over an 18-week study period (9Trusted Source).

Interestingly, participants on the vegan diet lost more weight than those who followed calorie-restricted diets, even when the vegan groups were allowed to eat until they felt full (10Trusted Source, 11Trusted Source).

What’s more, a recent small study comparing the weight loss effects of five different diets concluded that vegetarian and vegan diets were just as well-accepted as semi-vegetarian and standard Western diets (17Trusted Source).

 

3. It Appears to Lower Blood Sugar Levels and Improve Kidney Function

Going vegan may also have benefits for type 2 diabetes and declining kidney function.

Indeed, vegans tend to have lower blood sugar levels, higher insulin sensitivity and up to a 50–78% lower risk of developing type 2 diabetes (7Trusted Source, 18Trusted Source, 19Trusted Source, 20Trusted Source, 21Trusted Source).

Studies even report that vegan diets lower blood sugar levels in diabetics more than the diets from the American Diabetes Association (ADA), American Heart Association (AHA) and National Cholesterol Education Program (NCEP) (10Trusted Source, 12Trusted Source, 13Trusted Source, 22Trusted Source).

In one study, 43% of participants following a vegan diet were able to reduce their dosage of blood-sugar-lowering medication, compared to only 26% in the group that followed an ADA-recommended diet (22Trusted Source).

Other studies report that diabetics who substitute meat for plant protein may reduce their risk of poor kidney function (23Trusted Source, 24Trusted Source, 25Trusted Source, 26Trusted Source, 27Trusted Source, 28Trusted Source).

What’s more, several studies report that a vegan diet may be able to provide complete relief of systemic distal polyneuropathy symptoms — a condition in diabetics that causes sharp, burning pain

4. A Vegan Diet May Protect Against Certain Cancers

According to the World Health Organization, about one-third of all cancers can be prevented by factors within your control, including diet.

For instance, eating legumes regularly may reduce your risk of colorectal cancer by about 9–18% (31Trusted Source).

Research also suggests that eating at least seven portions of fresh fruits and vegetables per day may lower your risk of dying from cancer by up to 15% (32Trusted Source).

Vegans generally eat considerably more legumes, fruit and vegetables than non-vegans. This may explain why a recent review of 96 studies found that vegans may benefit from a 15% lower risk of developing or dying from cancer (7Trusted Source).

What’s more, vegan diets generally contain more soy products, which may offer some protection against breast cancer (33Trusted Source, 34Trusted Source, 35Trusted Source).

Avoiding certain animal products may also help reduce the risk of prostate, breast and colon cancers.

That may be because vegan diets are devoid of smoked or processed meats and meats cooked at high temperatures, which are thought to promote certain types of cancers (36Trusted Source, 37Trusted Source, 38Trusted Source, 39Trusted Source). Vegans also avoid dairy products, which some studies show may slightly increase the risk of prostate cancer (40Trusted Source).

On the other hand, there is also evidence that dairy may help reduce the risk of other cancers, such as colorectal cancer. Therefore, it’s likely that avoiding dairy is not the factor that lowers vegans’ overall risk of cancer (41Trusted Source).

It’s important to note that these studies are observational in nature. They make it impossible to pinpoint the exact reason why vegans have a lower risk of cancer.

However, until researchers know more, it seems wise to focus on increasing the amount of fresh fruits, vegetables and legumes you eat each day while limiting your consumption of processed, smoked and overcooked meat.

5. It’s Linked to a Lower Risk of Heart Disease

Eating fresh fruits, vegetables, legumes and fiber is linked to a lower risk of heart disease What’s more, several randomized controlled studies report that vegan diets are much more effective at reducing blood sugar,

This may be particularly beneficial to heart health since reducing high blood pressure, cholesterol and blood sugar levels may reduce the risk of heart disease by as much as 46% 

Compared to the general population, vegans also tend to consume more whole grains and nuts, both of which are good for your heart

6. A Vegan Diet Can Reduce Pain from Arthritis

A few studies have reported that a vegan diet has positive effects in people with different types of arthritis.

One study randomly assigned 40 arthritic participants to either continue eating their omnivorous diet or switch to a whole-food, plant-based vegan diet for 6 weeks.

Those on the vegan diet reported higher energy levels and better general functioning than those who didn’t change their diet 

Two other studies investigated the effects of a probiotic-rich, raw food vegan diet on symptoms of rheumatoid arthritis.

Both reported that participants in the vegan group experienced a greater improvement in symptoms such as pain, joint swelling and morning stiffness than those who continued their omnivorous diet 

 

 

 

 

Written by Alina Petre

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