Seed Oils vs Tallow: The Fat War Nobody Warned You About

You were told saturated fat was the enemy. The actual enemy had a very good PR team.

In the 1950s and 60s, a wave of research, largely funded by the sugar industry, positioned saturated fat as the primary driver of heart disease. The dietary fat guidelines that followed pushed millions of people away from traditional animal fats toward newly industrialised vegetable oils.

The result? A global experiment with an ingredient that had existed for fewer than 100 years, replacing fats that humans had consumed for millennia. We're still living with the consequences.

What Seed Oils Are Made Of

Seed oils, canola, sunflower, soybean, corn, cottonseed, safflower, are extracted from seeds using high heat and chemical solvents. The oils are then deodorised, bleached, and neutralised to remove the smell and colour that comes from the oxidation process they undergo during extraction.

The finished product is a clear, odourless liquid that looks neutral but is biochemically far from it. By the time it reaches the supermarket shelf, it has already begun oxidising.

The Omega-6 Issue

Seed oils are extremely high in omega-6 fatty acids, particularly linoleic acid. This isn't inherently bad, but the ratio matters. A healthy omega-6 to omega-3 ratio sits around 4:1 or lower. The modern Western diet has pushed that ratio to somewhere between 15:1 and 25:1.

Improved omega-6 intake, particularly from linoleic acid, is associated with increased inflammatory markers in the body. Chronic low-grade inflammation is now understood to underpin many modern metabolic diseases, cardiovascular disease, type 2 diabetes, non-alcoholic fatty liver disease.

Grain-fed tallow sits at a 16:1 omega-6:3 ratio. Grass-fed tallow? 1.4:1. That's not a marginal difference. That's a fundamentally different product.

What Heat Does to Seed Oils

Polyunsaturated fats are inherently unstable at high temperatures. When seed oils are heated beyond their relatively low smoke points, they produce aldehydes, toxic by-products that have been detected at concerning levels in kitchens that cook regularly with vegetable oil.

Tallow doesn't do this. Its predominantly saturated structure is heat-stable. The fat that heated your great-grandparents' kitchen didn't need a laboratory to exist, and it didn't oxidise into something harmful when used normally.

What the Research Says Now

 A 2020 review published in Current Opinions in Endocrinology, Diabetes and Obesity found

  'no consistent link between the intake of saturated fat or animal fat and an increased risk of coronary heart disease.' The authors concluded that caps on saturated fats 'are not warranted and should no longer be part of national dietary guidelines.'

  Source: Draxe.com review of the study (2025), 'Beef Tallow Benefits'

The science isn't fully settled, but the consensus that 'saturated fat = heart disease' has been significantly undermined. The picture is more complex, and simply replacing tallow with soybean oil may have made things worse, not better.

Making the Switch

You don't need to overhaul your kitchen overnight. Start with the highest-heat applications first, these are where seed oils are most harmful and where tallow performs best.

• Swap your frying oil for Tallowa Local Beef Tallow or Grass-Fed Tallow

• Use tallow for roasting vegetables at high temperatures

• Replace cooking spray with a small spoon of melted tallow in the pan

• Switch your chip fat, tallow produces a better result and is more stable

For cold applications (dressings, dips), extra virgin olive oil remains a strong option, its oleic acid content is also found in tallow and is well-supported by research. The goal isn't to demonise all oils. It's to stop using industrially processed, oxidation-prone seed oils in a hot pan.

Where Tallowa Stands

No seed oils. No industrial processing. No nonsense. Tallowa's cooking fats are rendered in small batches from locally sourced and Netherlands grass-fed beef. Two ingredients: beef fat and time.

Every jar is the result of slow rendering, filtering, and clean packaging. That's it. If you can read and trust every ingredient on a label, it belongs in your kitchen.

Sources:

• The Conscious Farmer AU, Why Grass-Fed Tallow Is a Great Choice for Cooking (omega ratio data)

• Hunter & Gather, A Saturated Fact: Beef Tallow Is Healthy

• Dr. Berg, Beef Tallow: 5 Ways It Can Help You (CLA and metabolic data, 2025)

• Draxe.com, Beef Tallow Benefits: What Is It? (Current Opinions in Endocrinology citation)