(NaturalHealth365)  Colorectal cancer death rates are rising each year, with a concerning shift – cases among individuals under 50 are increasing at an alarming rate.  While the majority of diagnoses still occur in older adults, about 13% now affect younger individuals, signaling a pressing need to understand the underlying causes.

A newly published study in BMJ Journals suggests that diet may play a key role in this trend.  Researchers have specifically pointed to seed oils as a potential contributor, raising concerns about their impact on inflammation and cancer risk.

Popular cooking oils used by millions may trigger severe health issues

Seed oils have become increasingly common in recent years, serving as alternatives to traditional cooking oils deemed unhealthy.  However, seed oils aren’t as healthy as most assumed.  The study linked above suggests seed oils are the cause of a surge in colon cancer among young adults.

Examples of seed oils commonly used when cooking and also in consumer products include:

• Sunflower oil
• Corn oil
• Soybean oil
• Palm oil
• Peanut oil
• Canola oil
• Safflower oil
• Rapeseed oil
• Cottonseed oil
• Vegetable oil
• Sesame oil

The study’s authors conducted a detailed analysis of tumor samples from individuals diagnosed with colorectal cancer.  In total, they examined 81 tumor samples, with 80% originating from patients with colon cancer and 18% from those with rectal cancer.  The study participants ranged in age from 30 to 85 years.

More than half of the patients had advanced-stage cancer (stage three or four), while one-third were diagnosed with stage two cancer.  The analysis revealed a significant imbalance in lipid mediators within the tumors, with an overabundance of pro-inflammatory bioactive lipids and a deficiency of inflammation-resolving lipids.

Why seed oils may be harmful to the human body

Seed oils are rich in polyunsaturated fatty acids (PUFAs), which the body metabolizes into bioactive lipids through complex biochemical pathways.  Once consumed, these fatty acids undergo enzymatic conversion, leading to the production of various lipid mediators.  While some of these lipids play essential roles in cellular function, an excess – particularly of pro-inflammatory lipid mediators – can contribute to disease.

In colorectal cancer, an imbalance of these bioactive lipids has been observed, with a dominance of pro-inflammatory compounds and a deficiency in inflammation-resolving lipids.  Chronic inflammation creates an environment where cancer cells can thrive, promoting rapid cell division and increasing the risk of harmful mutations.  Excessive pro-inflammatory lipids may impair the immune system’s ability to detect and eliminate cancerous cells, potentially accelerating tumor growth.

Strategies to prevent young-onset colon cancer

While genetics play a role in cancer development, lifestyle choices – including diet – also have a significant impact.  Alarmingly, early-onset colorectal cancer diagnoses among individuals aged 20 to 34 are projected to rise by 90% by 2030.

Shockingly, the average American now consumes approximately 100 pounds of seed oils per year – a 1,000-fold increase compared to the 1950s.  These oils, rich in pro-inflammatory omega-6 fatty acids, are found in processed foods, restaurant meals, and even so-called “health” products.

To reduce potential health risks, consider eliminating seed oils from your diet.  Avoid purchasing seed oils for cooking, and check ingredient labels carefully to avoid products containing soybean, corn, canola, sunflower, safflower, and cottonseed oils.

Instead, opt for healthier alternatives rich in stable fats and anti-inflammatory properties.  Some excellent choices include:

• Avocado oil – High in monounsaturated fats and heat-stable for cooking
• Coconut oil – A source of medium-chain triglycerides (MCTs) with potential metabolic benefits
• Olive oil – Rich in antioxidants and heart-healthy polyphenols (best used at low or moderate heat)
• Beef tallow – Contains a balanced fatty acid profile and is highly bioavailable
• Butter (preferably organic grass-fed) – A natural alternative with beneficial fat-soluble vitamins

By making mindful dietary choices and prioritizing anti-inflammatory, nutrient-dense fats, you can better support your overall health and potentially reduce the risk of early-onset colorectal cancer.

Sources for this article include:

Gut.bmj.com
Dailymail.co.uk
Wiley.com