If nutrition were intuitive, chronic diseases and widespread sickness wouldn’t be as prevalent.
The goal is to delve deeper into the nuances of nutrition.
Old vs. New Models of Disease and Nutrition
Historically, certain nutrients, like saturated fats, were demonized.
There are still “diet cults” that demonize various nutrients, particularly saturated fats.
It’s important to bring nuance to the conversation; not all saturated fats are the same (e.g., coconut oil vs. dairy fats).
A shift is needed from focusing on single nutrients in isolation to considering the whole foods we consume.
The Standard American Diet (SAD)
The SAD is high in added sugars, unhealthy fats, and refined grains, often found in ultra-processed foods.
These ultra-processed foods are engineered in labs to create customer loyalty.
The SAD is linked to chronic diseases such as obesity, type 2 diabetes, heart disease, certain cancers, and dementia.
It is primarily carbohydrate-based (45%-65% carbs, 20%-35% fat, 10%-20% protein), leading to concerns about adequate protein intake for body composition and metabolic health.
The Role of Protein and the Protein Leverage Hypothesis
Protein is the most satiating macronutrient.
The “Protein Leverage Hypothesis” suggests that increasing protein intake could naturally reduce overall calorie consumption by promoting satiety.
Overconsumption of carbohydrates and fats is common in the SAD, but the real issue may be the overconsumption of unhealthy added fats, sugars, and refined grains.
Ultra-Processed Foods: Definition and Impact
Ultra-processed foods are industrial formulations containing multiple ingredients, usually high in calories, added sugars, fats, and salt.
The NOVA food classification system categorizes foods based on their processing level: minimally processed (e.g., meat, fish, eggs) to ultra-processed.
Ultra-processed foods are associated with higher mortality, dementia, cardiovascular disease, and cancer risks due to their lack of satiety and nutrient content.
Study on Satiety and Ultra-Processed Foods
A study by Kevin Hall in 2018 showed that when subjects ate minimally processed foods ad libitum, they naturally consumed fewer calories.
When switched to ultra-processed foods, the same subjects consumed an excess of 500 calories, highlighting an 800-calorie swing due to food quality.
The quality of food influences the quantity consumed, making ultra-processed foods a significant factor in the obesity epidemic.
Characteristics and Risks of Ultra-Processed Foods
Ultra-processed foods contain ingredients not commonly found or used in home kitchens (e.g., industrially refined seed oils, emulsifiers, artificial sweeteners).
Seed oils, like soybean and canola, are refined, bleached, and deodorized, making them prone to oxidation and potential health risks.
These foods are low in protein and typically a mix of unhealthy fats and refined carbohydrates.
Added Sugars and Their Impact on Health
Added sugars contribute to empty calories, hyper-palatable foods, and perpetuate hunger, with average consumption at about 77 grams per day (20 teaspoons).
High-sugar intake is linked to several health issues, including elevated blood pressure and reduced testosterone levels.
The insidious nature of added sugars leads to excessive intake without providing nutritional benefits.
Seed Oils: Concerns and Recommendations
Refined, bleached, and deodorized seed oils (e.g., soybean, corn, canola) are a concern due to their oxidative properties and potential health risks.
There is a lack of long-term data on the impact of these oils on overall health, particularly concerning brain health.
It’s advisable to minimize consumption, especially in fried foods, where these oils can generate harmful byproducts like aldehydes.
The Five R’s of Real Food
Does it Roam or Ripen? Is it an animal or a plant?
Does it Rot? Real foods are perishable and have a shorter shelf life.
Can I Recognize it? Foods should be easily identifiable and not have long ingredient lists.
Could you eat it Raw? Natural foods can often be consumed raw.
Could you Recreate it? Foods that can be made in a home kitchen are generally minimally processed and healthier.
Conclusion: Key Takeaways for Healthy Nutrition
Focus on achieving a healthy body composition by consuming minimally processed, nutrient-dense foods.
Prioritize protein intake to support muscle health and overall vigor.
Avoid ultra-processed foods and added sugars, and be mindful of seed oils to maintain metabolic and cognitive health.
Embrace a holistic view of nutrition, considering the entire food matrix and its entourage effect on health.