How Sugar & Processed Foods Impact Your Health?
Dr. Robert Lustig, a renowned neuroendocrinologist and pediatrics professor, shares the profound impacts of sugar and processed foods on human health.
He challenges the conventional ‘calories in-calories out’ model and explores how different macronutrients, fiber, and sugar types can modify this equation.
Everyone thinks that obesity is about energy balance, that is calories in, calories out, but that doesn’t mean a calorie eaten is a calorie taken. That’s not the same and that’s where people get it wrong. – Dr. Robert Lustig
Significance of Gut Microbiome
The gut microbiome plays a critical role in our health as it feeds off what we consume.
The balance between what is absorbed by us versus what is left for our microbiome can greatly affect our overall health status.
Processing Different Macronutrients
Different macronutrients are processed differently by the body.
For instance, due to fiber content in almonds, only a portion of the calories are absorbed as fiber forms a gel inside your intestine that prevents some calorie absorption.
Protein’s Role in Energy Production
Excess protein consumed beyond body’s need for muscle growth or maintenance is converted into organic acids by liver to generate ATP – energy for cells.
This process requires more energy than burning carbohydrates or fats, implying not all consumed protein contributes to caloric intake.
Fats: A Double-Edged Sword
While Omega-3s and trans fats both have 9 calories per gram, their health impacts differ due to their chemical structure and how the body processes them.
Omega-3s benefit brain and heart health while trans fats can contribute to metabolic disease and insulin resistance.
Certain types of sugars like fructose can be addictive and modify how hormones function in our body, impacting liver health, kidney health and overall cellular functioning. – Dr. Robert Lustig
Glucose vs Fructose
Glucose is vital for life as every cell uses it for energy; if you don’t consume enough glucose, your body will convert amino acids or fatty acids into glucose.
Conversely, fructose is a sweet molecule heavily used by food industries but with potential negative health ramifications.
Hormonal Effects of Glucose
Glucose molecules can augment the function of certain hormones and this process becomes less efficient with age.
This could potentially lead to deficiencies in thyroid, testosterone, estrogen and other hormones as people get older.
Fructose: A Slow Poison
Fructose is classified as a weak toxin where it’s not one exposure that harms you but repeated exposure over time can have detrimental effects on your health leading to comorbidities and reduced lifespan.
Trans Fats: Hidden Dangers
Trans fats, once prevalent in our food supply are now banned due to their harmful effects on health.
However, they can still be produced in your own kitchen by heating olive oil beyond its smoking point.
