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Nine myths worth unlearning
Some of the most stubborn diet "rules" are out of date — and a few quietly steer people the wrong way.
Myth
Eating eggs and cholesterol-rich food raises your blood cholesterol
Reality
For most people the cholesterol in food has only a modest effect on blood cholesterol — saturated fat and refined carbohydrate matter far more. Eggs are a good, affordable protein and fine for most people daily. A minority are "hyper-responders" and should check with their GP, but blanket egg-avoidance is outdated.
Myth
Low-fat is always the healthiest choice
Reality
The quality of fat matters more than the quantity. Olive oil, nuts, avocado and oily fish are actively protective. Meanwhile "low-fat" processed products often replace the fat with sugar and starch, making them worse. Don't fear good fats.
Myth
All saturated fat is equally bad
Reality
Not all saturated fats behave the same, and the whole food matters more than the single nutrient. The stearic acid in dark chocolate and lean meat is largely cholesterol-neutral; cheese and yogurt don't affect the heart the way processed meat does. The clearest one to limit is processed meat — and coconut oil, despite the hype, is very high in saturated fat.
Myth
Carbs are the enemy — you need to go low-carb
Reality
It's refined carbohydrate and sugar that drive the problem — white bread, sugary drinks, sweets, most cereals. Intact whole grains, legumes, vegetables and whole fruit are beneficial. It's carbohydrate quality, not carbohydrate itself, that counts.
Myth
Diet only matters once your cholesterol is high or you're older
Reality
Artery furring is silent and starts in childhood, long before any number looks wrong. Good eating is preventive at every age — the earlier the habits, the more arterial wear you avoid. Waiting for a bad result is waiting too long.
Myth
"Gluten-free" and "free-from" means healthier
Reality
Gluten-free is essential for coeliac disease, but the label says nothing about heart health. Processed gluten-free breads, biscuits and snacks are often higher in sugar and fat and lower in fibre, with a higher glycaemic load. Judge any product on sugar, fibre and processing — not the "free-from" badge.
Myth
Fruit is too sugary and should be avoided
Reality
Whole fruit comes wrapped in fibre and water that blunt the sugar release — and it's consistently linked to better heart health. The problems are fruit juice and large amounts of dried fruit, where the fibre is gone or the sugar concentrated. Eat the fruit, not the juice.
Myth
If I take a statin or supplements, my diet doesn't matter
Reality
Medication and supplements work on top of a good diet, not instead of one — they each tackle different parts of the problem, and food still shapes your blood sugar, weight, inflammation and gut health. Eating well means everything else has less to do. (And never start, stop or change prescribed medicine on your own — that's a GP conversation.)
Myth
Healthy eating is expensive and needs special "health" foods
Reality
Some of the healthiest foods are the cheapest: dried or tinned legumes, oats, eggs, frozen vegetables, tinned oily fish and seasonal produce. It's ultra-processed food and premium "wellness" products that cost more. A heart-healthy plate is usually a budget-friendly one.
A note on this guide. This is general information to support healthy eating for heart and cholesterol health — it is not personal medical or dietary advice, and it doesn't replace your GP, pharmacist or a registered dietitian. If you have a medical condition, food allergies or intolerances (including coeliac disease), are pregnant, are managing a child's growth or weight, or take medication that interacts with diet, get individual advice before making big changes. Never start, stop or change prescribed medicine on the basis of a diet guide.