What Foods Cause Bad Cholesterol Levels?

Several categories of food raise LDL cholesterol, the type linked to plaque buildup in your arteries. The biggest drivers are saturated fat, trans fat, and, to a lesser extent, refined carbohydrates and dietary cholesterol. Knowing which specific foods contain these in high amounts lets you make targeted swaps rather than overhauling your entire diet.

How Food Raises LDL Cholesterol

Your liver is responsible for pulling LDL particles out of your bloodstream using specialized receptors on its surface. When you eat large amounts of saturated fat, your liver produces fewer of these receptors, so LDL particles stay circulating in your blood longer and at higher concentrations. Research in healthy men and women has confirmed the reverse: when people cut back on saturated fat, the number of LDL receptors increases by roughly the same proportion that their LDL cholesterol drops. This receptor mechanism is the central way diet influences your LDL number.

The American Heart Association recommends keeping saturated fat below 6% of your total daily calories. On a 2,000-calorie diet, that’s about 13 grams, or roughly the amount in a tablespoon and a half of butter.

Red and Processed Meat

Fatty cuts of beef, lamb, and pork are among the most concentrated sources of saturated fat in the typical Western diet. A single 6-ounce ribeye steak can contain 12 to 14 grams of saturated fat, nearly an entire day’s recommended limit. Ground beef, ribs, and sausage links fall in a similar range.

Processed meats like bacon, ham, hot dogs, and salami carry a double risk. They’re high in saturated fat and loaded with sodium, which raises blood pressure independently. A large Oxford University analysis found that each 50 grams per day of processed meat (roughly two slices of bacon) was associated with an 18% higher risk of coronary heart disease. Choosing leaner cuts, trimming visible fat, and replacing some red meat meals with poultry, fish, or plant protein are the most practical changes you can make.

Full-Fat Dairy Products

Butter, cream, whole milk, and full-fat cheese are dense sources of saturated fat. One ounce of cheddar cheese has about 6 grams, and a tablespoon of butter has around 7 grams. These numbers add up fast when cheese is melted over dishes or butter is used for cooking and baking. Cream-based sauces, ice cream, and whipped cream fall into the same category.

Switching to reduced-fat or fat-free versions of milk and yogurt is one of the simpler dietary changes with a measurable effect on LDL. For cheese, even going from full-fat to part-skim varieties cuts saturated fat roughly in half per serving.

Coconut Oil and Palm Oil

These tropical oils are sometimes marketed as healthy alternatives, but they behave more like animal fats in your body. A meta-analysis published in the AHA journal Circulation found that coconut oil raised LDL cholesterol by about 10.5 mg/dL compared to nontropical vegetable oils like olive, canola, or soybean oil. When compared directly to palm oil (itself high in saturated fat), coconut oil raised LDL by an additional 20.5 mg/dL.

Coconut oil is roughly 82% saturated fat, higher than butter or lard. If you currently cook with coconut oil, swapping to extra virgin olive oil or avocado oil is one of the highest-impact single changes for your LDL level.

Baked Goods and Fried Foods

Commercially produced pastries, cookies, cakes, pie crusts, and doughnuts often combine butter or shortening with refined flour and sugar. This combination delivers a large dose of saturated fat in a single serving. Many fast-food items, particularly anything deep-fried, are cooked in oils that may contain palm oil or partially hydrogenated oils.

Trans fats deserve special attention here. Although industrial trans fats have been largely phased out of the food supply, small amounts still appear in some packaged baked goods, microwave popcorn, and restaurant fryers. Trans fats are uniquely harmful: a controlled study in healthy adults found that replacing saturated fat with trans fat dropped HDL (the protective cholesterol) by 21% while keeping LDL unchanged. That means trans fats worsen your overall cholesterol ratio more than saturated fat alone. Check ingredient labels for “partially hydrogenated oil,” which signals the presence of trans fat even when the label reads 0 grams (manufacturers can round down from amounts below 0.5 grams per serving).

Refined Carbohydrates and Added Sugar

White bread, white rice, sugary cereals, and sweetened beverages don’t contain cholesterol themselves, but they affect the type of LDL your body produces. Diets high in refined carbohydrates promote the formation of small, dense LDL particles, which are more likely to penetrate artery walls than larger, fluffier LDL particles. Your total LDL number on a blood test may not change dramatically, but the composition shifts in a more dangerous direction.

Research in people with type 2 diabetes showed that a very low carbohydrate diet over two years reduced small dense LDL particles by about 23% and very small LDL particles by nearly 7%, while increasing the proportion of larger, less harmful LDL particles by 29%. You don’t need to go that extreme to benefit. Simply replacing white bread with whole grain, choosing steel-cut oats over sugary cereal, and cutting back on soda and fruit juice can shift your LDL particle profile in the right direction.

High-Cholesterol Foods: Context Matters

Egg yolks, shrimp, and organ meats like liver are high in dietary cholesterol. For decades, these were considered primary culprits for high blood cholesterol. Current evidence shows that dietary cholesterol has a more modest effect on blood levels than saturated fat does. Your liver compensates for much of the cholesterol you eat by producing less on its own.

That said, the effect isn’t zero, and it varies from person to person. Some people (sometimes called “hyper-responders”) see a meaningful LDL increase from dietary cholesterol. If your LDL is already elevated, it’s reasonable to moderate your intake of these foods, though they’re far less impactful than the saturated and trans fat sources listed above.

What Your LDL Number Means

For adults, current guidelines focus on your overall cardiovascular risk rather than a single cutoff. That said, some useful benchmarks exist. An LDL below 160 mg/dL in a low-risk adult generally calls for lifestyle changes alone. Between 160 and 189 mg/dL, medication may be reasonable depending on your age and other risk factors. At 190 mg/dL or above, the concern is high regardless of other factors.

For children and adolescents, an LDL below 110 mg/dL is considered acceptable, 110 to 129 is borderline, and 130 or above is abnormal. These pediatric thresholds matter because eating patterns established in childhood tend to track into adulthood.

Practical Swaps That Lower LDL

  • Butter or coconut oil → extra virgin olive oil or avocado oil
  • Fatty red meat → skinless poultry, fish, or beans
  • Full-fat cheese → part-skim mozzarella or nutritional yeast
  • Packaged baked goods → homemade versions using unsaturated oils
  • White bread and sugary cereal → whole grains and oats
  • Cream-based sauces → tomato-based or olive oil-based sauces

You don’t need to eliminate every item on this list permanently. The relationship between saturated fat and LDL is dose-dependent: the more you reduce, the more your LDL receptors recover and pull cholesterol from your blood. Even modest, consistent changes, like switching your cooking oil and eating two fewer servings of red meat per week, can produce a measurable drop within a few months.