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From Fish to Bacon, A Ranking of Animal Proteins in Order of Healthfulness

Turkey is leaner than chicken, bison is leaner than beef.

The Washington Post

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Different types of raw meat on a cutting board


As an average consumer, you probably have a vague awareness of the nutritional value of your animal proteins — fish being better than red meat, for example. The issue can be complicated, because all animal proteins have pros and cons, research can come up with conflicting results, and studies can surprise us. For example, research suggests that in terms of cholesterol alone, eating white meat chicken is as bad for you as eating beef.

Still, there’s a generally agreed upon hierarchy of nutritional value when it comes to animal protein and small shifts in your diet might have greater effects than you realize. In a study of the Danish population, researchers found that  Danes could gain more than 7,000 years of healthy life annually if they ate the recommended quantity (12 ounces per week) of fish, while at the same time replacing red and processed meats in their diet. 

“It’s important to note that there is no one-size-fits-all healthier diet or meat per se,” said Janese Laster, a physician nutrition specialist in the District. Also crucial? “There are differences in farming practices, so throughout the United States, each person is getting different risks and benefits from the meats.” Keeping that in mind, here are some conclusions that can be made about different categories of animal protein, starting with the good. 

A cut above: Fish and poultry

Poultry and fish are considered the best animal proteins you can load your diet with, Laster said. Fish is hailed for its omega-3 fatty acids, which can protect against cardiovascular disease. Fish is also rich in vitamin D, selenium and protein. “A healthy diet would entail a great diversity of fish consumption, rather than the same fish every day, along with fish that is wild caught rather than farmed,” Laster said. Because there’s some risk of ingesting “mercury, polychlorinated biphenyls, microplastic due to our polluted water supply,” try to avoid species such as swordfish or king mackerel and opt for cod or salmon instead.

Poultry, such as chicken and turkey, is also great protein source, low in calories and saturated fat. Keri Gans, registered dietitian and author of“The Small Change Diet,” used to recommend light meat over dark, but the fat difference is actually quite minimal. “Eat what you enjoy” is her new advice. “That said, breast meat is typically leaner than thigh, and you should always look at how it’s prepared.” Chicken wings loaded in sauce are not the best option. Gans recommends baking and grilling, and a skinless, boneless cut of poultry to keep each serving the healthiest. 

You might need fish and poultry even less than you think. (Research from the American Journal of Clinical Nutrition shows that even white meat consumption can increase cholesterol.) Though the American Heart Association recommends two to three servings of fish a week and eight to nine servings of super-lean protein, Laster says consuming just two to four servings per month of fish and two to four servings per month of poultry can provide benefits, according to research. “There is data to suggest a very low quantity of meat in general for healthier disease-free living, around two to four servings per month,” Laster said. “But if poultry is consumed, it should be of the best farming practices, with free range, no antibiotics or hormones, and livestock being provided with proper food, along with uncontaminated slaughtering practices.”

Less is more: Red meat

Most meat-eaters love a juicy hamburger or steak — but that should fall more in the indulgence zone, than in the category of dietary staple. The pros to red meat — which includes beef, pork, lamb, veal, venison and duck — are found in its minerals. Red meats can be great sources of iron and also pack “vitamin B12, zinc and protein, all of which are important nutrients,” said Amy Patton, a registered dietitian at Ohio State University’s Wexner Medical Center. 

The cons, however, are notable. “According to the American Institute of Cancer Research, red meat intake can possibly promote certain cancers such as colorectal cancer,” Patton said. “Cooking red meat at high temperatures may also increase cancer risk, and red meats tend to be higher in saturated fats than other protein sources.” The saturated fat may, in turn, increase your risk for cardiovascular disease.

What should you probably avoid altogether, or at least only eat on a very rare occasion? Processed meats. “Essentially, this is any meat that has been preserved or had a chemical added, like bacon, bologna, pepperoni, beef jerky, hot dogs, sausage and deli meats,” Laster said. There are other ways to get your protein fix — without all the downsides. (The World Health Organization classifies processed meat as “carcinogenic to humans.”)

When it comes to overall health, saturated fat should be limited as much as possible. Lamb typically has more saturated fat — which can raise your levels of bad cholesterol, putting you at higher risk of cardiovascular disease — than beef or pork. T-bones, rib-eye and New York strip steak tend to be fattier forms of beef when compared to ground rounds, sirloin or flank steak. Pork is typically lowest in calories and saturated fat when compared with other red meats — as long as it isn’t processed into bacon or cured ham.

According to the World Cancer Research Fund, you should not eat more than 12 to 18 ounces of red meat each week, or roughly three servings — but some experts suggest less is more. “Many trials have shown decreased progression or reversal of chronic diseases, cancer, obesity and metabolic syndrome, including diabetes, hypertension and high cholesterol, when you avoid processed red meats and greatly limit red meat consumption,” Laster said. A recent study published in the BMJ showed that increased red meat consumption leads to a higher risk of mortality.

If you choose to consume red meat, keep it smart. “Select leaner cuts, and use more healthful cooking methods, such as baking or broiling rather than frying or grilling,” Patton said. Gans tells her clients that “round” or “loin” cuts are often leaner — think “pork tenderloin,” “loin chop” — when ordering off a menu or selecting at the store. 

Other protein

Substituting even one serving per day of red or processed red meat with poultry, fish or legumes “significantly decreases” the risk of metabolic syndrome, Laster said. And don’t forget those non-meat sources of protein. In addition to legumes, nuts, seeds, tofu, almond milk, quinoa and chia can be part of a healthy dietary regimen. 

If you’re thinking of a step-by-step way to improve your diet, Laster recommends “cutting back on red meat, and then limiting animal products to a few times per month,” rather than in the typical American diet of a few times per day. “There’s been a few studies that have come out to show it’s what Americans are not eating daily — such as beans, grains, legumes, vegetables, fruits — that may account for some of the [unhealthy] effects we see in studies,” Laster said.

When it comes to meat in your diet, small adjustments can reap big rewards, Laster said. “These incremental changes will help with weight loss, improve diabetes, high blood pressure and cholesterol, and possibly help you get off medications.” 

Healthiest to least healthy

Jenna Birch talked with experts to offer general guidance on which animal proteins and cuts of meat are the best for you. Here’s what they said.

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Jenna Birch is a journalist who has written about health and wellness for publications including Yahoo Health, HuffPost, Prevention and WebMD. She is also the author of “The Love Gap: A Radical Plan to Win in Life and Love.”

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This post originally appeared on The Washington Post and was published July 3, 2019. This article is republished here with permission.

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