Getting accurate cholesterol test results is crucial for understanding your heart health. What you eat before your blood work can significantly impact those numbers—sometimes for better, sometimes for worse.
Whether you’re trying to showcase your healthiest levels or just avoid skewed results, knowing which foods to embrace and which to skip before testing day can make all the difference.
1. Oatmeal: Your Heart’s Best Friend

Start your pre-test morning with a warm bowl of oatmeal topped with berries. The soluble fiber in oats helps trap cholesterol and remove it from your body.
Regular consumption can lower your LDL (bad cholesterol) by up to 7% in just six weeks! Skip the instant varieties with added sugars, though.
2. Fatty Fish: Omega-3 Powerhouse

Salmon, mackerel, and sardines deliver a healthy dose of omega-3 fatty acids that can boost your HDL (good cholesterol) levels.
These underwater heroes work double-duty by reducing inflammation in your blood vessels. Aim for two servings weekly, but even one meal before your test can help showcase better numbers.
3. Avocados: Creamy Cholesterol Fighters

Mash it on toast or slice it into salads—avocados are loaded with monounsaturated fats that can improve your cholesterol profile.
Studies show these green gems can lower LDL while raising HDL levels. Plus, their potassium content helps control blood pressure, giving your heart health an extra boost before testing day.
4. Nuts: Small Packages, Big Benefits

Grab a handful of walnuts, almonds, or pistachios before your test. These crunchy snacks contain plant sterols that block cholesterol absorption in your gut.
Just one ounce daily can reduce LDL by up to 5%! Their protein and fiber content also keeps you feeling full, preventing hunger-induced fast food stops.
5. Beans: Fiber-Filled Cholesterol Busters

Black, kidney, or navy—beans of all varieties work wonders for cholesterol levels. Their soluble fiber forms a gel-like substance that traps cholesterol particles and escorts them out of your body.
Toss them into soups or salads the day before testing. The plant proteins they contain also help repair artery walls!
6. Olive Oil: Liquid Gold For Arteries

Drizzle this Mediterranean staple over salads or use it for cooking before your cholesterol test. The polyphenols in extra virgin olive oil help reduce inflammation and oxidative damage.
Research shows just two tablespoons daily can lower LDL levels while preserving your HDL. Your taste buds and arteries will thank you equally!
7. Berries: Sweet Cholesterol Defenders

Pop some blueberries, strawberries, or raspberries as a pre-test snack. These colorful fruits are packed with antioxidants that fight artery inflammation and reduce cholesterol oxidation.
Their natural sweetness satisfies cravings without spiking blood sugar. Research links eating berries three times weekly to a 32% lower heart attack risk!
8. Leafy Greens: Nutrient-Dense Cholesterol Shields

Spinach, kale, and collards deserve a spot on your pre-test plate. These leafy superstars contain compounds that bind to bile acids, forcing your body to use cholesterol to make more.
Lutein content also protects artery walls from damage. Just one daily serving can improve your lipid profile within weeks!
9. Green Tea: Sip Your Way To Better Results

Brew a cup of green tea the morning of your test. The catechins in this ancient beverage help lower LDL and total cholesterol while boosting HDL levels.
Research suggests drinking just one cup daily can reduce heart disease risk by 10%. The mild caffeine won’t throw off your results like coffee might.
10. Bacon and Sausage: Cholesterol Test Saboteurs

Put down that sizzling strip! Processed meats like bacon and sausage are loaded with saturated fats that send LDL levels soaring within hours.
Just two slices can raise your cholesterol reading by up to 10 points. The high sodium content also triggers water retention, potentially affecting other blood markers during your test.
11. Fast Food Burgers: Drive Past, Not Through

That drive-thru burger combo is a cholesterol test nightmare. The combination of refined carbs, processed cheese, and fatty meat can spike your triglycerides and LDL for up to 14 hours!
A single fast-food meal before testing can inflate your numbers by as much as 15-20%. Your doctor might prescribe unnecessary medications based on these results.
12. Butter Croissants: Flaky Layers Of Deception

Those golden, flaky layers hide a cholesterol-spiking secret. Each buttery croissant contains about 8 grams of saturated fat—nearly half your daily limit!
The refined flour also causes rapid blood sugar fluctuations. Eating one the morning before your test can temporarily raise your LDL by up to 15 points. Save this treat for after your bloodwork.
13. Ice Cream: Frozen Cholesterol Bomb

That creamy scoop might cool your taste buds but heats up your cholesterol. Premium ice cream can contain up to 18 grams of saturated fat per serving—more than most fast food meals!
The sugar-fat combination triggers an inflammatory response that can affect test results for up to 12 hours. Your heart deserves better before testing day.
14. Coffee With Cream: Morning Ritual, Testing Mistake

Your favorite morning brew becomes a cholesterol culprit when you add cream or half-and-half. The saturated fat content can temporarily spike your numbers within hours.
Caffeine itself also increases adrenaline, potentially raising both blood pressure and cholesterol during testing. Switch to black tea or water on test day for more accurate results.
15. Fried Chicken: Crispy Coating, Clogged Results

That crispy, golden coating delivers a one-two punch to your cholesterol test. The combination of skin-on chicken and deep-frying oil can raise LDL levels for up to 36 hours after eating!
Just one piece contains approximately 7-10 grams of saturated fat. The trans fats from reused oil are particularly damaging to arterial health.
16. Coconut Oil: Not All Plant Oils Are Equal

Despite its trendy health halo, coconut oil is surprisingly high in saturated fat—higher than butter! Each tablespoon contains about 12 grams of saturated fat.
Consuming this tropical oil before testing can temporarily boost your LDL levels by 10-15%. Some studies show it raises HDL too, but the overall effect can still confuse your test results.
17. Liver Pâté: Iron-Rich But Test-Wrecking

This fancy spread packs a cholesterol punch that can throw off your numbers. Organ meats like liver are naturally high in cholesterol—just 3 ounces contains more than your entire daily recommended limit!
The iron content, while nutritious, can also affect certain blood markers. Save your charcuterie board celebrations for after your test results come in.
18. Store-Bought Cookies: Sweet Cholesterol Saboteurs

Those packaged cookies hiding in your pantry can wreak havoc on cholesterol results. Many contain partially hydrogenated oils (trans fats) that raise LDL while lowering HDL—the worst combination possible!
The refined sugar triggers inflammation throughout your vascular system. Even sugar-free varieties often contain saturated fats that can spike your numbers for hours.