a white background with a few lines on it

The Best Online Guide to Cooking Oils

Taylor Stolt, RDN, LD, CLT, IFNCP • November 28, 2020
The Best Online Guide to Cooking Oils

Cooking oils can make or break how healthy a meal is, but navigating cooking oil options can be confusing!

In this blog post I break things down into three categories:

  • I explain the three most important factors when choosing a cooking oil.
  • I reveal which cooking oils to avoid and why .
  • I share my favorite cooking oils and how I use each one !

Top three cooking oil factors

There are three main oil properties to focus on when choosing your cooking oil: saturation, smoke point, and process . I’ll dive into each of these in detail below.

1. Saturation

The saturation of oils determines their stability.

Polyunsaturated oils are unstable , meaning that you have to be more careful when cooking with them at higher temperatures. Examples include flax, corn, safflower, sunflower, soybean, cottonseed, and sesame oils.

Monounsaturated oils are more stable , meaning they are less apt to become denatured when cooking with them. Examples include avocado, olive, peanut, and canola oils.

Saturated oils are very stable and are not likely to denature when cooking. Examples include coconut oil, butter, and ghee.

Trans fats are made after oils go through a process to add hydrogen, which allows them to be solid at room temperature. Trans fats are associated with many health risks , such as increasing unhealthy cholesterol levels and elevating the chance of strokes and heart attacks.

Examples include margarine, plant-based butter substitutes, vegetable shortening, partially hydrogenated oils.

 

Where are these oils found? Trans fats can be hidden in popcorn, non-dairy coffee creamers, frosting/icing, fried foods, and baked goods (muffins, cakes, pastries and doughnuts, etc.).

 

2. Smoke Point

A smoke point is the highest temperature at which an oil can be heated before it breaks down and oxidizes , creating dangerous compounds. (Click here to learn more)

Below is a list of smoke points for common cooking oils:

  • Avocado – 500-520 F
  • Coconut – 350-385 F
  • Ghee – 485 F
  • Butter – 300 F
  • Extra virgin olive oil – 325-385 F
  • Canola – 400 F
  • Corn – 450 F
  • Peanut – 450 F
  • Safflower – 510 F
  • Sunflower – 450 F
  • Sesame – 350 F

3. Process

  • Refined oils – These are highly processed to remove impurities, leading them to be more stable (i.e. they can have a longer shelf life) but the processing can damage the natural elements in the oils. They often undergo several variations of processing to make the oils more bland, usually with extremely high heat.
  • Unrefined oils – These are minimally processed , which allows the vital nutrients of the oils to be preserved, as well as the original colors and flavors. These oils are usually cold-pressed (temperature controlled) or expeller-pressed (mechanically controlled) and are also known as virgin or extra virgin.
  • Solvent extraction – The process used to extract canola oil is called hexane solvent extraction , which involves using the solvent hexane to pull oil from the seeds before it is heated and bleached. All of this processing leaves the resulting oil damaged with levels of unhealthy trans fat present due to the deodorization process.

Cooking Oils to Avoid

Cooking oils to avoid because of their processing :

  • Canola
  • Peanut
  • Safflower
  • Sunflower

Cooking oils to avoid because of their high omega-6 content (more info on omega-6’s here , here , and here )

  • Safflower
  • Sunflower
  • Peanut
  • Corn
  • Soybean
  • Grapeseed

Cooking oils/fats to avoid because of their trans fat content:

  • Vegetable oil
  • Pam spray
  • Margarine
  • Plant-based butter substitutes
  • Vegetable shortenings

My Favorite Cooking Oils

Avocado Oil

Grass-fed ghee

  • High smoke point and saturated, making it very stable .
  • Lactose-free.
  • Contains fat-soluble vitamins vitamin A,  vitamin E , and vitamin K.
  • Use for high temperature cooking like grilling, high heat sautéing, and roasting.

Extra Virgin Olive Oil

  • Low smoke point and monounsaturated, making it unstable .
  • Make sure to use a high-quality olive oil that is third-party tested! Many olive oils are adulterated, meaning the company adds or substitutes lower quality oils to cut costs and make more money. You can learn more here.
  • My favorite olive oil brands include California Olive Ranch , Bragg, Cobram Estate, and Oro Bailen.
  • Use for low heat sautéing and low temperature baking. Olive oil can also be drizzled on a meal after it is cooked or used in a salad dressing.

Coconut Oil

Key Takeaways

Congrats – you are now a cooking oil expert!

Feeling overwhelmed? Just remember to keep these three things in mind:

  • Understand which oils to use for what types of cooking based upon their smoke point and stability (whether they are saturated or unsaturated). Use avocado oil and ghee for high temperature cooking, and use less stable oils like olive oil for lower temperature cooking or to drizzle on top of a meal/
  • Avoid oils that are processed with high heat or high in omega-6 fats . Common cooking oils to avoid include peanut, corn, canola, safflower, sunflower, and soybean oil.
  • Always read ingredient labels and never make assumptions! Unhealthy oils can be found in a variety of food products including products that are deemed healthy like salad dressings and hummus.

Be sure to be sure to follow me on Instagram  @plateandcanvas  for more recipes and nutrition tips!

About THE AUTHOR

Taylor Stolt is an award-winning Functional Medicine Dietitian and women’s health expert. She has transformed her own struggles with hormonal imbalances and poor gut health into a beacon of hope for thousands of women. Taylor is the creator of the Restore Program, a step-by-step guide that shows women how to rebalance their hormones naturally. Her mission is to empower women with practical tools and sustainable habits so women can reclaim their health and feel like themselves again.

Continue Reading

By Taylor Stolt, RDN, LD, CLT, IFNCP December 12, 2024
Taylor Stolt, Functional Medicine Dietitian and women’s health expert, shares her top ten supplements to curb sugar cravings, how to incorporate them, plus answers frequently asked questions about using these supplements.
Best Healthy Restaurants in Austin
By Taylor Stolt, RDN, LD, CLT, IFNCP October 1, 2024
Taylor Stolt, Functional Medicine Dietitian and women’s health expert, shares her fifteen favorite healthy restaurants in Austin, plus answers frequently asked questions about how to choose healthy options when eating out.
herbs for hormone balance
By Taylor Stolt, RDN, LD, CLT, IFNCP July 1, 2024
Taylor Stolt, Functional Medicine Dietitian and women’s health expert, shares her fifteen favorite herbs for hormone balance and how to incorporate them, plus answers frequently asked questions about using herbs to rebalance your hormones.
Top Signs of Pelvic Floor Dysfunction
By Claire Lusignan PT, DPT June 21, 2024
Pelvic floor specialist Claire Lusignan shares the top seven symptoms of pelvic floor dysfunction and how to know when it's time to seek support from a professional.
By Taylor Stolt, RDN, LD, CLT, IFNCP April 18, 2024
Polycystic Ovary Syndrome (PCOS) is a common hormonal condition that affects millions of women in the United States. PCOS results in debilitating symptoms, long term complications, and is one of the most common causes of infertility in the US. Sadly, for many women it takes years to finally get a diagnosis. For the women who do get diagnosed, they usually don’t know where to begin when it comes to addressing their PCOS naturally. I’ve worked with so many women who are just told to go on birth control to “fix” their PCOS. Birth control not only doesn’t fix PCOS - it can actually cause more issues! Although PCOS is a complex disorder, nutrition, supplements, and lifestyle changes can significantly slow its progression and reduce symptoms. In fact, many of my clients with PCOS have been able to put their PCOS in remission naturally. In this article, we’ll cover: What is PCOS? The role of hormones in PCOS Common signs and symptoms of PCOS Root causes of PCOS How to manage PCOS naturally Dietary and lifestyle changes for PCOS Where to go from here 
A person is holding pills in their hand next to a glass of water.
By Taylor Stolt, RDN, LD, CLT, IFNCP April 11, 2024
Our expert guide to Ashwagandha for PCOS. Learn Registered Dietitian Taylor Stolt's top recommendations for using Ashgawandha as part of a holistic approach to PCOS remission.
PCOS snacks dietitian
By Taylor Stolt, RDN, LD, CLT, IFNCP March 25, 2024
Taylor Stolt, Functional Medicine Dietitian and women’s health expert shares her twenty favorite snacks for PCOS, plus answers commonly asked snacking and PCOS questions
The Top 7 Ways to Improve Your Gut Health for Healthy Hormones
By Taylor Stolt, RDN, LD, CLT, IFNCP March 20, 2024
Discover the seven ways to improve your gut health and rebalance your hormones, according to a Registered Dietitian, Certified Functional Medicine Practitioner, and women's health expert.
By Taylor Stolt, RDN, LD, CLT, IFNCP February 1, 2024
Fifteen years ago, my digestive issues sparked my interest in gut health. I was amazed that there were thousands of research studies showing connections between our gut and the health of our immune system, our skin, our brain, and more. I was even more amazed that no one was talking about it! Now gut health is a hot topic, and I’m glad. Our gut health is at an all-time low because of antibiotics, processed food, high stress levels, pesticides, antibacterial soaps, and other gut damaging factors that are so prevalent in the modern world. If you’re unsure about your own gut health, start by asking yourself these three important questions.
Best Teas for Hormone Balance
By Taylor Stolt, RDN, LD, CLT, IFNCP January 25, 2024
Our expert guide on the best teas for hormone balance. From lemon balm's stress relieving properties to red clover's menopause relief, learn how this Registered Dietitian's top 10 teas, backed by science and research, can help with a holistic approach to balancing your hormones.
More Posts
Share by: