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If you’ve scrolled social media lately, you’ve probably seen people swapping vegetable oils for beef tallow, going all-in on carnivore diets, or loading up on protein from steak and bacon. With so much conflicting nutrition advice out there, it’s easy to wonder: Is saturated fat actually bad for you, or is that outdated thinking?
Here’s the deal: Despite what some influencers claim, the science on saturated fat and heart health is pretty clear. Saturated fat raises your LDL cholesterol—the kind that builds up in your arteries and increases your risk of heart disease (1). And while hitting your protein goals matters, many popular protein sources come packaged with a lot of saturated fat.
Let’s break down what you need to know.
What Saturated Fat Does to Your Body
Saturated fat is a type of fat found mainly in animal products like beef, pork, poultry with skin, butter, cheese, and full-fat dairy, plus tropical oils like coconut and palm oil (2). When you eat foods high in saturated fat, your body produces more LDL cholesterol—often called “bad” cholesterol (4).
Here’s why that matters: LDL cholesterol can build up in the walls of your arteries, forming plaques that narrow blood vessels in a process called atherosclerosis (1)(5). Over time, this increases your risk of heart attack and stroke. Research consistently shows that replacing saturated fat with unsaturated fats (like those in olive oil, nuts, and fish) reduces cardiovascular disease risk (1).
“The link between saturated fat and heart disease isn’t new or controversial among scientists,” says Denise Hernandez, MS, RD, LD . “A correlation has been made between people reducing saturated fat in their diet, to a decreased heart disease risk.”
The mechanism is straightforward: saturated fat decreases the number of LDL receptors in your liver, which means your body clears less LDL cholesterol from your bloodstream (6). More LDL circulating means more opportunity for it to oxidize and get trapped in artery walls, triggering inflammation and plaque formation (5).
5 Foods Low in Saturated Fat That Dietitians Want You to Eat
The Protein-Saturated Fat Connection
Getting enough protein is important—it helps you feel full, supports muscle mass, and keeps your body functioning well. But here’s the catch: many popular high-protein foods are also loaded with saturated fat.
Red meat (beef, pork, lamb) contains saturated fat. Processed meats like bacon, sausage, and hot dogs pack high amounts of both saturated fat and sodium (7). Full-fat dairy products, another protein source, deliver saturated fat along with their calcium and protein (2).
“I see a lot of clients who are focused on hitting protein goals but don’t realize they’re also getting way more saturated fat than they need,” says Hernandez. “The good news is you can meet your protein needs while managing saturated fat intake.”
The solution? Plant-based proteins. Foods like beans, lentils, chickpeas, tofu, tempeh, and edamame deliver substantial protein with little to no saturated fat (3). For example, a cup of cooked lentils provides about 18 grams of protein and virtually no saturated fat or sodium (8).
Even if you’re not vegetarian, swapping some of your animal protein for plant protein can make a real difference for your heart. Studies show that replacing red meat with plant proteins reduces cardiovascular disease risk (8).
Current Guidelines and What They Mean for You
The American Heart Association recommends limiting saturated fat to less than 6% of your total daily calories (2). For someone eating 2,000 calories a day, that’s about 13 grams of saturated fat.
To put that in perspective, a single tablespoon of butter contains 7 grams of saturated fat. A 4-ounce serving of beef can pack 5 grams or more (8). It adds up quickly, which is why most American adults consume more saturated fat than recommended (2).
The bottom line: while you don’t need to eliminate saturated fat completely, keeping it in check matters for long-term heart health. The carnivore diet and beef tallow trend don’t change this—they just add more saturated fat to your plate.
Smart Swaps for Heart Health
Making heart-healthy choices doesn’t mean giving up flavor or satisfaction. Here are some simple swaps:
Instead of butter, try olive oil or avocado oil for cooking. Both are rich in unsaturated fats that can actually improve your cholesterol levels when used in place of saturated fats.
Swap fatty cuts of meat for leaner options like skinless chicken breast, fish (especially salmon, trout, or mackerel), or plant proteins. When you do eat red meat, choose lean cuts and trim visible fat.
Choose low-fat or fat-free dairy instead of full-fat versions. You’ll still get the protein and calcium without as much saturated fat.
Use beans or lentils in place of ground meat in tacos, chili, and pasta sauce. You’ll cut saturated fat while adding fiber—something animal proteins don’t provide.
“Small changes add up,” says Hernandez. “You don’t have to overhaul your entire diet overnight. Start by making plant-based meals a couple times a week, or swapping one high-saturated-fat food for a lower saturated fat option.”
Frequently Asked Questions: Saturated Fat and Heart Disease
Is saturated fat from coconut oil different from saturated fat in meat?
No. Coconut oil is about 90% saturated fat and raises LDL cholesterol just like other saturated fats. Despite marketing claims, research shows coconut oil increases LDL cholesterol without proven cardiovascular benefits (9).
What about the carnivore diet and beef tallow trends?
These trends are popular on social media, but they conflict with decades of scientific evidence linking high saturated fat intake to heart disease. The American Heart Association and other major health organizations continue to recommend limiting saturated fat for heart health (1).
Do I need to track saturated fat if I’m young and healthy?
Heart disease takes decades to develop, so the choices you make now matter. Atherosclerosis—the buildup of plaque in arteries—starts in young adulthood when saturated fat intake is high. Building healthy habits early may prevent problems down the road.
The Bottom Line
Saturated fat raises LDL cholesterol and is linked to increasing your risk of heart disease—which is based on consistent data from decades of research. While trending diets may suggest otherwise, the scientific consensus hasn’t changed.
The good news: you can easily meet your protein needs and support heart health by choosing lean proteins, incorporating more plant-based options like beans and lentils, and using unsaturated fats like olive oil in place of butter and other saturated fats. Your future self (and your heart) will thank you.
The post Saturated Fat 101: What You Need to Know appeared first on MyFitnessPal Blog.
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