Experts Warn About Brain Health Risks with GLP-1 Weight-Loss Drugs

GLP-1 weight-loss medications, such as Ozempic and Wegovy, are gaining popularity. However, experts caution that rapid weight loss and severe reduction in calorie intake might deprive the brain of essential energy and nutrients.

Dr. Tommy Wood, a professor of pediatrics and neuroscience at the University of Washington, discussed these concerns. He emphasized the importance of energy availability in the human body, especially for brain function. “The brain is your most energy-hungry organ,” Wood stated during Strong NY, a leading fitness event in New York City.

Impact on Brain Reserve

Brain reserve, which refers to the physical amount and quality of brain tissue, depends on the body’s energy availability. Obesity, high blood sugar, and metabolic disease can affect the brain’s resilience by damaging blood vessels and increasing insulin resistance. GLP-1 medications can help manage these issues by improving blood sugar control and lowering blood pressure.

Excess energy caused by obesity, high blood sugar, and metabolic disease can lower the brain’s resilience.

Conversely, Dr. Wood warned about the risks at the lower energy spectrum. The brain requires continuous fuel, and extreme calorie deficits can lead to the brain consuming its own tissue. He cited a study that showed white matter in the brain shrinking during a marathon due to energy shortfalls. After rest and proper nutrition, the brain recovered.

Effects on Muscle Quality

Concerns about muscle mass loss with GLP-1 medications are present. Initially, “lean mass” loss might involve fat within muscles. Consequently, muscles might seem smaller but maintain their strength and functionality.

However, drastic reductions in food intake for prolonged periods pose risks. Essential nutrients for the central nervous system, such as B vitamins, vitamin D, iron, and omega-3 fatty acids, are crucial to prevent cognitive impairment.

Recommendations for Protecting Brain Health

Dr. Wood advised safeguarding brain health during weight loss by combining regimens with resistance training twice a week. This helps maintain muscle mass and stimulate brain growth factors.

Consuming adequate “neuro-nutrients” ensures long-term cognitive health. He stressed the importance of a balanced intake of nutrients crucial for brain function. “Make sure you don’t push it too far, that you’re now getting enough of everything that the brain needs,” he advised.

Khloe Quill, a lifestyle writer with Fox News Digital, covers topics including food, travel, and health.