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Is Soybean Oil Bad For You? Unraveling The Truth Backed By Science

By Dr. Nikita Toshi +2 more

Key Highlights: 

  • Soybean oil is a commonly used cooking oil with a high smoke point and possibly several health benefits. 
  • It has a good fatty acid composition, including monounsaturated, polyunsaturated, and saturated fats as well as omega-3 fatty acids. 
  • Some potential health benefits include supporting heart, bone, and skin health, and providing a source of vitamins and minerals. 
  • Possible downsides include being pro-inflammatory, having aflatoxin content, susceptibility to oxidation, sustainability concerns, and the potentially negative impact on brain health. 
  • Comparisons with other oils indicate benefits and drawbacks depending on individual preferences and health goals. 

Introduction 

Soybean oil is a well-known cooking oil used across the globe. People love it for its high heat resistance and wide uses. But is soybean oil good for our health or does it do more harm?

In this article, we’ll discuss everything about soybean oil. We’ll look at how it’s made, its nutrients, health perks, and possible risks. We’ll also put it up against other oils like olive, canola, and coconut oil. All this to help you make an informed choice! 


What is Soybean Oil? 

What does ‘soybean oil’ mean? It’s an oil we squeeze out of soybean seeds. This oil is a common sight in kitchens due to its cooking uses. 

1. Production process 

Making soybean oil calls for a few steps. These include cleaning, drying and cracking soybean seeds. Then comes the oil extraction. 

2. Extraction methods 

  • Mechanical extraction: Here, soybean seeds are crushed till oil oozes out. 
  • Solvent extraction: In this method, the crushed seeds are rinsed with a chemical named hexane to get the oil. 

The oil now needs to go through cleaning, neutralising, and bleaching. The result? Clear, safe oil ready to be used. 

3. Culinary uses 

Soybean oil is handy for cooking in a lot of ways. Let’s see where all you can use it: 

  • Frying: Its high heat resistance makes it the go-to oil for frying. 
  • Baking: Can’t find butter or margarine? Use this oil instead. 
  • Roasting: Its mild taste doesn’t hide the food’s flavour in roasted dishes. 
  • Salad dressings: Want to make a healthy salad dressing? Use soybean oil! 

Did you know?

Nutritional Value of Soybean Oil 

Soybean oil is known for its blend of nutrients. It is found to contain a rich mix of unsaturated and saturated fats, vitamins, and minerals. 

1. Fatty acid composition 

What makes soybean oil so healthy? It can be the fats it has: 

  • Monounsaturated fats 

These are ‘good’ fats that cut down ‘bad’ cholesterol (a type of fat in your body) while boosting ‘good’ cholesterol. About one-fifth to one-fourth of soybean oil is made up of these fats mainly oleic acid. 

  • Polyunsaturated fats 

These fats come from linoleic acid (omega-6) and alpha-linolenic acid (omega-3). Both are vital for heart health. Soybean oil has about half to three-fifths of these fats.  

  • Saturated fats 

These are the ‘bad’ fats. Eating too many of these can spike bad fat levels and harm your heart. That said, only a small part of soybean oil is made up of these fats. So, it’s a safer bet compared to oil types high in these fats. 

2. Vitamins and minerals 

Soybean oil may also provide you with some needful vitamins and minerals: 

  • Vitamin E: This vitamin helps protect cells from wear and tear and boosts your immune system. 
  • Vitamin K: Helps regulate blood clotting and keeps bones healthy. 

3. Omega-3 fatty acids 

Our body cannot produce Omega-3s on its own. So, we need to get it from our diet. One way to get them is through soybean oil. Omega-3s are essential for a healthy brain and heart and may aid in controlling inflammation in the body. 

Soyabean oil has multiple health benefits. I will highly recommend the use of soyabean oil along with other vegetable oils as it may have the potential benefit of reducing cholesterol levels.

Dr. Siddharth Gupta, B.A.M.S, M.D 

Health Benefits of Soybean Oil 

The mix of nutrients in soybean oil may contribute to a wide range of health perks. Some potential health benefits of soybean oil are: 

1. High smoke point 

Heat doesn’t pose a problem to soybean oil up to 450°F. This makes it apt for high-heat cooking like roasting, baking, frying, etc. Using high smoke point oils might help in preventing the harm caused by free radicals and stop the oil from breaking down at high heat. 

2. Rich in heart-healthy fats 

Soybean oil might be beneficial in bringing down bad cholesterol owing to the high amounts of unsaturated fats in it. Eating more of these fats instead of saturated fats can really do your heart some good. 

3. May support bone health 

Soybean oil may play a role in maintaining your bone’s strength through its vitamin K content, which is useful in regulating bone health. It may also aid in producing proteins helpful for maintaining bone mass.  

4. Contains omega-3 fatty acids 

Along with being a heart and brain booster, the omega-3 fats in soybean oil may also pump up our immunity. Eating enough omega-3s may bring down inflammation tied to chronic diseases like heart disease, cancer, and diabetes. 

5. Promotes skin health 

Soybean oil might protect skin from damage and ease inflammation, thanks to its vitamin E content. Vitamin E  also helps keep skin moisturised and isoflavones may slow down  early skin ageing in postmenopausal women. 

6. Versatile and easy to use 

Why choose soybean oil? Because it’s handy enough for different food techniques. Whether you’re frying, baking, or making a salad dressing, this oil won’t let you down. Plus, it doesn’t change the taste of your food. 

Based on my observations, among various vegetable oils, soyabean oil possesses a high smoking point. Due to this, it might be quite useful while cooking at high temperatures like frying, baking, roasting, etc.

Dr. Rajeev Singh, BAMS

Potential Downsides of Soybean Oil 

Having said the positives of soybean oil, it will be fair only when we look at its downsides als. Some of these are: 

1. Pro-inflammatory properties 

Soybean oil has a high concentration of omega-6 fats. Eating too much of it might stoke inflammation. Eating more omega-3 along with omega-6 can help manage this inflammation better. 

2. Aflatoxin content 

Did you know some soybean oil may contain hazardous compounds from mould called aflatoxins? Exposing yourself to aflatoxins might weaken immune system, hamper growth, and may even lead to cancer as per some studies. Making sure the oil comes from a trusted source and storing it properly can lower the risk of aflatoxin contamination. 

3. Susceptibility to oxidation 

The high proportion of unsaturated fats in soybean oil means it oxidises easily. Oxidation may create unhealthy compounds and affect the flavour of the oil. To avoid oxidation, it is best to keep soybean oil in a dark and cold place and use it up quickly. 

4. Sustainability concerns 

Soybean oil production affects the environment due to deforestation and habitat loss. It can also bring into play genetically modified crops and pesticides. The solution? Go for organic or sustainable soybean oil. 

5. Possible negative impact on brain health 

Studies on mice show that excessive soybean oil consumption may harm the body’s energy metabolism and brain function. While we need to study more about how it affects humans, it’s smart to use soybean oil sparingly. 

Soybean Oil vs. Other Oils 

Aside from checking the pros and cons of soybean oil, let’s also see how it fairs against other popular cooking oils such as olive oil, canola oil, and coconut oil. 

Soybean oil vs. olive oil 

  • Nutritional comparison: Olive oil contains more unsaturated fats and antioxidants than soybean oil. This might give extra perks like fighting inflammation and boosting heart health. 
  • Health benefits and drawbacks: Both oils may be good for heart health and offer unique perks. Olive oil is generally seen as healthier because of its higher concentration of unsaturated fats and antioxidants. 

Soybean oil vs. canola oil 

  • Nutritional comparison: When it comes to fatty acid breakdown, soybean and canola oil are alike. Canola oil has slightly less bad fat compared to soybean oil. 
  • Health benefits and drawbacks: Both are potentially heart-friendly and offer varied perks. Choosing between the two might boil down to what you prefer in taste. Both, when eaten mindfully, may improve heart health and cholesterol levels. 

Soybean oil vs. coconut oil 

  • Nutritional comparison: Coconut oil has much more bad fat compared to soybean oil. On the flip side, soybean oil has more good (unsaturated) fats. 
  • Health benefits and drawbacks: The bad fat in coconut oil can boost bad cholesterol levels. Conversely, soybean oil may lower bad cholesterol levels. However, coconut oil also has medium-chain triglycerides which could offer health perks. The choice between soybean and coconut oil may hinge on individual health goals and tastes. 

Also Read: Patchouli Oil: Uses, Benefits, Side Effects & More! 

Conclusion 

To wrap up, soybean oil may carry several health perks like promoting heart, bone, and skin health. This is largely due to the unique blend of nutrients it offers. At the same time, you must also consider possible minus points like its pro-inflammatory nature and sustainability issues. When weighing soybean oil against other cooking oils, you’ll find each oil has a unique nutritional profile and health benefits. The decision to use soybean oil or not depends on your diet needs, cooking likes, and climate concerns. Use proper cooking methods and minimise the use of oil in your recipes. However, if you are suffering from any health condition, it will be best to consult your healthcare provider about the right choice of oil for your diet. 

Frequently Asked Questions (FAQs) 

Is soybean oil healthy for diabetics? 

Yes, it can be when consumed in moderation. This is because it is rich in good fats and scores low on the glycemic index. But if you have diabetes, connect with your doctor before changing your diet in a big way. 

Is soybean oil healthy for frying? 

Yes, you can. Soybean oil can face high heat without breaking down. But, be mindful that frying too much can pump up calorie intake and cause weight gain or other health problems. Do not reuse the oil which was once used to fry. So, mix up your cooking methods for your best health. 

Is soybean oil inflammatory? 

Soybean oil can be pro-inflammatory. Soybean oil has a lot of omega-6 fats which can stoke inflammation, especially if eaten too much or not balanced out with omega-3 fats. The key is to eat these fats wisely. 

What is the best alternative to soybean oil for cooking? 

There are options like olive, canola, or coconut oil. The best choice depends on your health goals, cooking likes, and climate concerns. Keep in mind that every oil has its own unique nutrient makeup and health perks. So, pick one that aligns with your specific needs. It is best to minimise the use of oils in your diet.  

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