Best and Worst Cooking Oils: Which One Should You Use Daily?

Cooking oil is one of the most important ingredients in every kitchen, but choosing the right one can be confusing. From olive oil to refined vegetable oil, supermarket shelves are filled with countless options. The truth is that no single oil is perfect for every type of cooking. The healthiest choice depends on its nutritional value, smoke point, and how you plan to use it.

Best Cooking Oils

1. Extra Virgin Olive Oil

Often considered the healthiest cooking oil, extra virgin olive oil is rich in monounsaturated fats and antioxidants. It supports heart health, helps reduce inflammation, and is ideal for salad dressings, sautéing, and light cooking. However, it is not the best option for deep frying because of its moderate smoke point.

2. Avocado Oil

Avocado oil has one of the highest smoke points among cooking oils, making it suitable for frying, roasting, and grilling. It contains healthy fats and vitamin E, making it an excellent all-purpose oil.

3. Mustard Oil

A staple in many Indian kitchens, mustard oil contains monounsaturated and polyunsaturated fats. It also has a distinctive flavour that enhances curries and pickles. Always use food-grade mustard oil and heat it properly before cooking.

4. Groundnut (Peanut) Oil

Groundnut oil is a good choice for stir-frying and deep frying because of its high smoke point. It has a mild flavour and contains heart-friendly monounsaturated fats.

5. Sesame Oil

Sesame oil is packed with antioxidants and has a rich, nutty flavour. It works well in Asian dishes, marinades, and light sautéing.

Cooking Oils to Limit

1. Partially Hydrogenated Oils

These oils contain artificial trans fats, which have been linked to an increased risk of heart disease. Although banned or heavily restricted in many countries, it's still important to check food labels for partially hydrogenated oils in processed foods.

2. Reused Cooking Oil

Using the same oil repeatedly for frying can produce harmful compounds that may increase inflammation and reduce the oil's nutritional quality. Fresh oil is always a safer choice.

3. Highly Refined Vegetable Oils

Some refined oils, such as soybean, corn, and sunflower oil, can be heavily processed.

While they can be used in moderation, diets relying heavily on them without variety may provide an imbalance of fatty acids.

4. Palm Oil

Palm oil is widely used in processed foods because of its stability. While sustainably produced palm oil has environmental advantages, it is relatively high in saturated fat compared with many liquid plant oils. Using it occasionally is generally fine, but it shouldn't be the only cooking oil in your diet.

5. Coconut Oil

Coconut oil has become popular in recent years, but it is also high in saturated fat. Current evidence suggests it can fit into a balanced diet in moderation, though it is not considered the healthiest everyday cooking oil for most people.

Rather than relying on a single oil, experts recommend rotating different healthy oils based on your cooking needs. Choose oils with healthy unsaturated fats, avoid repeatedly heating the same oil, and limit highly processed foods that contain trans fats. Combined with a balanced diet rich in fruits, vegetables, whole grains, and lean protein, choosing the right cooking oil can support better heart health and overall well-being.