Health Claims

Giving mice a supplement called L-carnitine every day makes artery disease about twice as bad, but if you wipe out their gut bacteria with antibiotics, that effect goes away — meaning the gut bugs...

If someone has high levels of L-carnitine in their blood, they might be more likely to have heart problems — but only if they also have high levels of another substance called TMAO.

If you eat meat and take L-carnitine, your gut bacteria might turn it into a substance that could clog your arteries. But if you're vegan or vegetarian, your gut bugs don’t do this much, so you’re...

If you plan meals based on how well your body can actually absorb nutrients—like iron and zinc from meat—instead of just counting total nutrients, it ends up costing 50% to 89% more each day to meet...

It might be really hard for women between 19 and 50 to get enough iron and zinc from affordable, everyday foods—even if they're trying to eat the cheapest healthy diet possible.

When figuring out the cheapest way to eat healthy, models show that most people in the U.S. end up with foods like beef, milk, eggs, and fish in their diet — meaning animal foods often make the most...

Beef gives you key nutrients like protein, B-12, and zinc for less money than other foods when you consider how well your body can actually use them — at least in theory, according to diet models.

Pomegranate peel might help fight bacteria that cause tooth decay and food spoilage, thanks to natural compounds in the peel.

We don't have enough proof yet that the plant chemicals in pomegranate peels actually help people feel better or stay healthy, and scientists need to study how our bodies process them and what...

Adding pomegranate peel extract to foods like juice, yogurt, and meat might boost their natural freshness and keep them from spoiling, without changing how they taste or smell — kind of like a...

Pomegranate peel contains natural compounds that might help protect cells from damage by fighting harmful molecules in lab and animal studies.

Pomegranate peel has powerful natural chemicals that make it way better at fighting inflammation and damage in the body than the juicy part — and it could be a cheap way to boost health foods with...

Eating meat affects iron levels more in women who still have periods than in men or women who don’t — probably because those women need more iron and lose it monthly.

If you're a premenopausal woman, especially an endurance athlete, eating more meat might help keep your iron levels up and reduce your chances of being low on iron.

Even if vegetarians eat more iron than meat-eaters, they might still be more likely to be low on iron because the kind of iron in plants isn't as easily absorbed by the body.

Eating red meat every day might help your body store more iron than eating chicken or fish — one study says people who eat red meat daily have nearly a third more stored iron in their blood.

Eating more red meat—like beef or lamb—might help women of childbearing age in rich countries keep healthier iron levels, especially if they eat between a small steak and a large one every day.

If healthy young adults eat raw carrots or drink carrot juice with a bit of oil, it boosts their body's β-carotene levels a lot—but that doesn’t actually improve their overall antioxidant power in...

If young, healthy adults eat raw carrots or drink fresh carrot juice with a little canola oil, their bodies absorb the beta-carotene quickly—peaking in the blood in just 1.5 hours—and it’s all...

Juicing carrots might help your body absorb more of the good stuff (like vitamin A) even though the juice has less of it per bite — you just need to drink more of it to get the same amount you'd get...

Drinking carrot juice helps your body absorb more beta-carotene than eating raw carrots. This happens because juicing breaks down the carrot's structure, making it easier for your body to soak up the...

Ayurveda says some everyday foods might have natural toxins, and it teaches how to avoid getting sick from them.

Cleaning or treating foods that have natural toxins can help make them safer to eat by removing harmful stuff that might otherwise make you really sick or even worse.

Seafood can become dangerous to eat if shellfish eat toxic algae or if fish aren't stored properly and bacteria grow. Eating this contaminated seafood can make people and animals seriously sick.