The Sugar Has Always Been Free

Sugar is sugar. Bread is sugar. Rice is sugar. Pasta is sugar. Fruit is sugar. Your blood cannot read the label.

The body keeps about four grams of glucose circulating at any moment. A teaspoon’s worth. That is the entire circulating pool. A single glazed doughnut dumps fifty grams. A plate of pasta, a bowl of porridge, a “healthy” smoothie, a jacket potato, a sandwich on seeded bread — all of them are chains of glucose molecules holding hands. The moment they hit the gut the chain lets go. By the time they reach the blood there is no crust, no jumper, no Scottish accent, no leaf on the packet. There is only glucose, and the pancreas does not ask where it came from.

That overload is not neutral. Glucose sticks to proteins and forms advanced glycation end products — AGEs. These permanently damage tissue, drive inflammation and oxidative stress, and impair insulin signalling. Fructose does the same job roughly ten times harder. High blood sugar is tightly linked with diabetes, blindness, infertility and heart disease. The symptoms are ordinary: thirst, frequent urination, fatigue, blurred vision, weight loss, skin changes. Most people dismiss them until the numbers force a diagnosis.

Then comes the rollercoaster. The body floods the system with insulin to clear the excess. It often overshoots. Blood sugar crashes. Hypoglycaemia arrives with anxiety, palpitations, hunger, brain fog, dizziness and an urgent need to eat something dense and sweet. You overeat. The spike returns. Energy swings, emotional turbulence, poor sleep and relentless cravings become the background noise of the day. Constantly see-sawing between high and low is not “normal energy levels.” It is metabolic turbulence.

Sugar spikes dopamine. Easy dopamine creates resistance. You need more of the same hit for the same effect, and the central reservoir that normally fuels sustained effort and motivation drains. You become weaker for the next hit and weaker for the hard things — the early morning lift, the long work, the discipline that actually builds anything lasting. Combine it with every other cheap dopamine source in modern life and the outcome is predictable.

Fructose loosens the tight junctions in the gut lining and promotes bacterial overgrowth. Compounds that should stay in the intestine leak into the bloodstream. Autoimmune reactions and systemic inflammation follow. It also generates bacterial endotoxins and TMAO. The gut barrier is the first line of defence; sugar weakens it.

Sugar rarely arrives alone. Ultra-processed versions come wrapped in seed oils — highly oxidisable linoleic acid that embeds in cell membranes for years, drives inflammatory cascades and displaces the stable fats the body actually knows what to do with. Grains and starches bring lectins, gluten and glyphosate. The package is not just sugar; it is sugar plus metabolic poison plus plant defence chemicals plus pesticide residue.

It also depletes. Every hit draws on calcium, magnesium, B vitamins and chromium. Empty calories that require nutrients to process them leave the body poorer than before. The dietary requirement for carbohydrate is zero. The few tissues that need glucose can make it via gluconeogenesis. Everything else runs perfectly well on fat and ketones. Carbohydrate is surplus. When that surplus crowds out nutrient-dense animal food, deficiencies open up and inflammation rises further.

Insulin resistance follows from the glycation damage and from the uric acid generated by fructose metabolism. Pathological insulin resistance is the soil in which chronic disease grows. Fat storage is the predictable next step: insulin keeps the fat locked away while the body still has sugar to burn. Energy levels drop because the mitochondria are under constant oxidative and glycation stress. Ketosis is cancelled the moment glucose is available in quantity; the cleaner, more efficient fuel pathway is switched off.

People say they do not eat much sugar. They mean they do not buy bags of it from the baking aisle. The brown bread has it. The granola has it, and they pour it into yoghurt that also has it. The pasta sauce has it. The ketchup has it. The baked beans have it. The “healthy” cereal bar has it. The smoothie is liquid sugar with a leaf. The flavoured oat milk has it. The restaurant bread roll has it. The salad dressing, the marinade, the glaze, the dip. Starches are glucose molecules holding hands. Complex carbohydrate is simply sugar that takes twenty minutes longer to become the same molecule in the blood. Slow poison versus fast poison is still poison. One of them has “whole grain” printed on the packet so it is declared healthy. The pancreas does not read marketing.

Withdrawal produces headaches, irritability, fatigue and cravings. Conventional advice calls this proof that the brain needs glucose and that you should return to the carbohydrates. The same symptoms appear when people withdraw from alcohol, nicotine or opioids. In those cases we recognise the symptoms as the addiction ending. When the substance is sugar we are told the symptoms are evidence you need more of it. The distinction is thinner than the food industry prefers.

Raw honey is sugar in a nicer jar. Fruit is sugar with fibre. Neither changes the fundamental fact that the body treats the glucose and fructose the same way once the packaging is stripped. The hunter-gatherers who still take wild honey eat the comb with the grubs; the grubs supply the fat and protein. Strip those out and you are left selling concentrated sugar to people who believe they have given it up.

Sugar does not merely fail to nourish. It actively damages the machinery that keeps you alive, depletes the nutrients required to run that machinery, and is delivered in a food environment designed to make avoidance nearly impossible. The willpower argument is convenient for the companies that put it everywhere. It keeps the fault with the individual.

The body has a thermostat for glucose. One teaspoon circulating, insulin on standby. It has no equivalent thermostat for the industrial volumes now poured through the system daily. The costume is for you. The sugar is for your bloodstream.