Nutrition Guide

A Guide to Choosing Healthy Fats for Your Heart

Learn how to choose the right types of fats to support your cardiovascular health.

Written by the ArterAI team · Last reviewed April 2026

This content is for informational purposes only and does not constitute medical advice. Always consult your physician regarding your individual health decisions.

The Real Story About Fats

Let's clear up a common misconception: eating fat doesn't make your cholesterol worse – eating the wrong types of fat does. Your body actually needs fat for hormone production, vitamin absorption, and heart health. The key is choosing fats that support your cardiovascular system instead of working against it.

Think of it this way: saturated fats are like kindling that makes your liver's cholesterol production burn hotter, monounsaturated fats are like steady logs that burn clean and support good cholesterol, and polyunsaturated fats are like specialized fuel that actively helps your body process cholesterol more efficiently.

The Three Types of Fats Explained Simply

Saturated Fats:

Solid at room temperature, these come mainly from animal products and some tropical oils. They signal your liver to make more cholesterol particles.

Monounsaturated Fats (MUFAs):

Liquid at room temperature but solid when chilled (like olive oil in the fridge). These fats can help lower bad cholesterol while maintaining good cholesterol.

Polyunsaturated Fats (PUFAs):

Always liquid, even when cold. These include omega-3s and omega-6s, which actively help your body manage cholesterol and reduce inflammation.

Fats to Prioritize (Your Heart's Best Friends)

Monounsaturated Fat Champions:

  • • Olive oil (especially extra virgin for salads and finishing dishes)
  • • Avocados and avocado oil (great for higher-heat cooking)
  • • Nuts: Almonds, cashews, pistachios, macadamia nuts
  • • Seeds: Sunflower seeds, pumpkin seeds
  • • Olives

Polyunsaturated Fat Stars:

  • • Fatty fish: Salmon, sardines, mackerel, herring (omega-3 powerhouses)
  • • Walnuts and walnut oil
  • • Ground flaxseed and flaxseed oil
  • • Chia seeds
  • • Hemp seeds

Fats to Limit (But Not Eliminate)

Saturated Fats to Use Sparingly:

  • • Butter and ghee
  • • Coconut oil and palm oil
  • • Fatty cuts of meat
  • • Full-fat dairy products
  • • Processed meats like bacon and sausage

Fats to Avoid Completely:

  • • Trans fats: Found in some processed foods, margarine, and partially hydrogenated oils (check ingredient lists)

Making the Switch in Real Life

In Your Cooking:

  • • Use olive oil for salad dressings and low-heat cooking
  • • Use avocado oil for higher-heat cooking and roasting
  • • Replace butter in recipes with olive oil (use ¾ the amount)
  • • Add nuts or seeds to salads, yogurt, and oatmeal

For Snacks:

  • • Choose a handful of almonds over cheese and crackers
  • • Try avocado toast instead of butter and jam
  • • Snack on walnuts instead of processed snack foods
  • • Add chia seeds to smoothies or yogurt

In Your Meals:

  • • Include fatty fish 2-3 times per week
  • • Use olive oil-based vinaigrettes instead of creamy dressings
  • • Add sliced avocado to sandwiches and salads
  • • Sprinkle ground flaxseed on cereals and soups

The 80/20 Approach

Don't aim for perfection – aim for progress. If 80% of your fat intake comes from the “prioritize” list, you're doing great. The occasional butter on toast or piece of cheese won't undo your efforts. Consistency with better choices matters more than occasional indulgences.

Why This Balance Works

When you shift your fat choices this way, you're not just reducing harmful fats – you're actively adding fats that support heart health. Monounsaturated fats help maintain your good HDL cholesterol while lowering LDL. Omega-3 polyunsaturated fats reduce inflammation throughout your cardiovascular system. It's a win-win approach that makes your food more delicious while improving your health markers.