Most people judge food by one question: will it make me fat? So they tell themselves “I just do not train enough.” That misses the real story. The damage from modern food happens whether or not you gain weight, and it is mostly invisible until you feel it.

It is not about willpower

Ultra-processed food is designed in a lab to be irresistible. The exact mix of sugar, refined oil, salt and texture is tuned to hit your brain’s reward system and to bypass the signals that normally tell you that you are full. That is why you can finish a bag of chips and not feel satisfied, but you cannot overeat steak the same way.

This is not a character flaw. You are eating products built by food scientists to make you keep eating. Whole foods do not do that.

Industrial seed oils

Seed and “vegetable” oils (sunflower, soybean, canola, corn) are barely a century old. They are high in omega-6 fats that are chemically fragile: they oxidize with heat and light, and a diet flooded with them pushes your body toward chronic low-grade inflammation. Humans never ate fat this way until industry made it cheap.

Here is how upside-down it has become: people fry their eggs in sunflower oil but think butter is too fatty. Butter is real food humans have eaten for thousands of years. The seed oil is the new, industrial part.

Constant sugar

It is not the occasional fruit that is the problem, it is the constant drip of refined sugar in drinks, snacks and “healthy” packaged food. It keeps insulin elevated, drives energy crashes, and over time interferes with the hormones that govern hunger, mood and even testosterone. The 3pm slump and the craving an hour after eating are not random; they are a sugar response.

The cost is bigger than your waistline

Even at the same body weight, a diet of processed food, seed oils and sugar shows up as:

Lower, less stable energy across the day.
Worse mood and higher stress reactivity, because blood sugar and inflammation affect the brain.
Disrupted hormones, which touch everything from recovery to libido to how you feel in your own skin.

“I just do not do sport” is a comforting story. The truth is that what you eat is changing how your body and brain work, every day.

What to eat instead

You do not need to be perfect or extreme. You need to make real food the default:

Meat, including red meat, and organs like liver (the most nutrient-dense food there is).
Eggs, fish, and animal fats like butter and tallow.
Fruit, raw dairy, honey.
Cook with butter, tallow or olive oil, not industrial seed oils.

People react to “eat liver and red meat” as if it is extreme, while eating daily industrial snacks without a second thought. That reaction is exactly how disconnected modern eating has become.

How Phyziq scores this

The Phyziq Food Score grades each food F to S on what it does to your body: nutrient density, how processed it is, its effect on your hormones, and where it comes from. Real food rises. Ultra-processed food, seed oils and refined sugar fall. The point is not guilt; it is finally seeing what your food is actually doing.

FAQ

Is all fat bad? No. Industrial seed oils are the problem, not fat itself. Animal fats like butter and tallow are real foods your body uses well.

Is sugar from fruit the same as sugar in soda? No. Whole fruit comes with fiber, water and nutrients and is not engineered to overeat. The problem is refined sugar added to processed products.

Do I have to cut everything out? No. The goal is to make real food your default and understand what processed food does, so the choice is yours and not the product’s.

Seed oils, sugar and ultra-processed food: what they actually do to your body