Sugar and Cancer: Understanding the Connection

All the body's cells, including cancer cells, depend on sugar, also called glucose, for energy. Although sugar is necessary for our bodies to function, consuming too much of it can cause weight gain, elevated fat levels, and insulin resistance, all of which are risk factors for cancer.

How Sugar Affects Cancer Risk

Not all sugars are created equal. Simple carbohydrates and high-glycaemic-index (GI) foods cause rapid spikes in blood sugar and insulin levels. Over time, frequent insulin surges can increase the release of insulin-like growth factor (IGF), a hormone that has been linked to cancer cell growth. Controlling blood sugar levels may help reduce IGF production, potentially slowing cancer progression.

• LiverLiver
• Colorectal
• Pancreatic
• Breast
• Endometrial
• Ovarian

Choosing the Right Foods

• Low-carb, high-protein foods: Organic lean meats, eggs, and oily fish (heavy in omega-3)
• Fiber-rich vegetables: Leafy greens and cruciferous vegetables like cauliflower and broccoli.
• low-GI fruits: Berries, grapefruit, avocado, and star fruit in moderation.

Sugar Types to Avoid

While natural sugars in fruits come with beneficial nutrients, refined and processed sugars should be minimized. Avoid:

• Fructose (in excess)
• Lactose (milk sugar)
• Sucrose (table sugar)
• Maltose (grain sugar)
• Glucose & Dextrose (simple sugars)

The Role of Intermittent Fasting

Intermittent fasting helps regulate insulin levels and may reduce cancer risk by promoting cellular repair.  Some studies suggest fasting along with chemotherapy may reduce adverse effects by protecting healthy cells while increasing the susceptibility of cancer cells.

While sugar itself doesn’t directly cause cancer, excessive consumption, especially of refined sugars, can contribute to obesity, insulin resistance, and inflammation, all of which raise the risk of cancer. Sugar does not directly cause cancer. Intermittent fasting, cutting less on sugar, and selecting low-GI foods can all help you better control blood sugar levels and promote overall health.

Making mindful dietary choices today can help reduce long-term risks and promote a healthier, cancer-resistant body.