Is It Safe To Cook With Canola Or Vegetable Oil? Experts Explain

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There are a lot of confusing nutrition topics out there, but cooking oils are near the top of the list. Over the years, there’s been a big push toward canola and vegetable oils since they’re high in unsaturated fats and low in saturated ones, but an isolated nutrition profile doesn’t always tell the whole story—and that’s especially true in this case.

If you’re trying to figure out whether canola oil or vegetable oil is the healthier option, or if they’re even healthy at all, you may be surprised by the answer.

What is canola oil?

Let’s start with canola oil. Canola oil is a neutral-tasting oil that’s made by crushing the seeds of the canola plant. That sounds simple enough, but there’s a lot that goes on behind the scenes to get there.

The canola plant actually started out as the rapeseed plant, but as is, rapeseed contains two toxic compounds—erucic acid and glucosinolates—and can’t be safely consumed. According to registered dietitian and certified diabetes educator Shahzadi Devje, R.D., CDE, MSc, Canadian scientists figured out how to remove these compounds through targeted plant breeding and came up with the canola (Can for Canada and ola for oil) plant.

To make canola oil, oil is extracted from the canola plant through a long manufacturing process that involves chemicals like hexane, Devje says.

Canola oil has two major benefits when it comes to cooking: It has a neutral flavor so it doesn’t alter the taste of what you’re cooking and it has a high smoke point, meaning it can withstand high cooking temperatures without breaking down and burning. “Canola oil also contains vitamin E, vitamin K, and plant sterols to support heart health,” Devje previously told mbg. But the benefits pretty much end there.

What about vegetable oil?

Vegetable oil isn’t a specific type of oil; it’s more a general term that’s used for any oil that comes from plants, including seeds, grains, nuts, and/or fruits. That being said, when referring to “vegetable oil,” people most often mean soybean oil.

However, it’s worth noting that most commercial vegetable oils are actually a mishmash of different types of inexpensive oils, including soybean and corn. Since the term “vegetable oil” is so vague, manufacturers can add a blend of oils without technically being misleading.

Like canola oil, vegetable oil has a high smoke point and a neutral flavor, plus a high concentration of unsaturated fats.

So, which is the healthier option?

The short answer? Neither. Aside from being highly processed and (most likely) genetically modified, the polyunsaturated fats in canola and vegetable oil are largely omega-6 fatty acids. This isn’t necessarily a problem on its own, but it becomes an issue when you look at the bigger picture.

Before industrialization and oil refining came into play, our diets were full of omega-3 fatty acids that came from wild game, wild-caught fish, plants, and natural fats. Once the focus shifted to liquid vegetable oils and farm-raised animals instead, our omega-6 consumption skyrocketed, while intake of omega-3 fatty acids started to fall short, according to functional medicine doctor Mark Hyman, M.D.

To put it into perspective, studies show that the ideal ratio of omega-6s to omega-3s is 2:1. Right now, the average American consumes 10 to 20 times more omega-6s than omega-3s (a ratio of 10:1 to 20:1).

Sure, consuming a large amount of unsaturated fats sounds good, but the problem is that omega-6 fatty acids can have pro-inflammatory effects. And unless you’re balancing it out with the anti-inflammatory properties of omega-3s, you’re not doing yourself any favors. Omega-6 fatty acids also decrease the conversion of alpha-linolenic acid (a plant-based omega-3 fat) into the active forms of omega-3 (EPA and DHA) by as much as 40%, according to Hyman.

Aside from that, canola oil is one of the least healthy oils for other reasons. It’s highly processed and usually stripped of nutrients, says nutritionist and mindbodygreen Functional Nutrition Training instructor Serena Poon, C.N., CHC, CHN.

It’s also genetically modified, which typically means there are more herbicides involved in its production, and that can have negative effects on the environment, Devje says.

Substitutes for canola or vegetable oil.

So, what oil should you use instead? According to Poon, it largely depends on what you’re doing with it. The main draw of canola and vegetable oil is their versatility, but you can use these healthier alternatives in their place.

  • In cooking: avocado oil, sesame oil, coconut oil, or extra-virgin olive oil
  • In frying: avocado oil, sesame oil, or peanut oil
  • In dressings: flaxseed oil, pumpkin seed oil, or extra-virgin olive oil
  • In baking: coconut oil or avocado oil

For baking, Poon also recommends skipping the oil altogether and opting for applesauce or mashed banana in its place. “Mashed fruits will add moisture to muffins and cakes without the processed oil or added fats and can act as a substitute for some added sugar,” she previously told mbg.

Conclusion.

It may be tempting to use canola oil and/or vegetable oil due to the versatility and neutral flavor, but these oils aren’t doing you any favors. Instead, skip them both and make more nutritious swaps, if you’re able. Coconut oil and avocado oil are high-heat-friendly options for cooking, while olive oil is an excellent option for dressings or cold drizzling on vegetables after roasting.

This content is strictly the opinion of Chef Serena Poon and is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of medical advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. Neither Serena nor the publisher of this content takes responsibility for possible health consequences of any person or persons reading or following the information in this educational content. All viewers of this content, especially those taking prescription or over-the-counter medications, should consult their physicians before beginning any nutrition, supplement or lifestyle program.

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