Health Claims

People with type 2 diabetes or prediabetes who used a free online program teaching low-carb eating saw their blood sugar levels drop, especially those who finished most of the lessons.

Correlational

Even when overweight mice eat much less food, their leg muscles don’t shrink — as long as they get enough protein — showing that muscle loss isn’t inevitable during weight loss.

Correlational

When overweight mice lose weight by eating less, their cholesterol levels go down — no matter what kind of food they eat — because the drop in cholesterol is tied to how much weight they lost.

Correlational

When overweight mice eat fewer calories, only those on a low-carb, high-fat diet see a big drop in blood fats called triglycerides — other diets don’t have the same effect.

Correlational

When overweight mice eat fewer calories, their blood sugar control gets better — but if their diet is very low in carbs, their blood sugar doesn’t improve as much as if they ate more carbs.

Correlational

When overweight mice eat significantly less food, they lose body fat no matter if their diet is low in carbs, low in fat, or high in protein — the key is eating fewer calories overall.

Correlational

What matters most for losing weight isn’t whether you eat low-fat or low-carb—it’s whether you show up to your weight-loss meetings and stick with the program.

Causal

Even with lots of coaching, people can’t stick perfectly to diets that require them to eat a lot more protein or less fat—most end up eating closer to their old habits, but still lose weight.

Descriptive

Eating fewer calories—no matter if you eat more fat, protein, or carbs—helps lower bad cholesterol, insulin, and triglycerides, but diets with more protein lower insulin a bit more, and diets with fewer carbs raise good cholesterol a bit more.

Causal

The more often overweight people attend weight-loss counseling sessions, the more weight they lose—even if they’re on different diets—suggesting support matters more than what you eat.

Causal

When overweight people eat fewer calories and get regular coaching, it doesn’t matter much if their diet is high in fat, protein, or carbs—they lose about the same amount of weight no matter what.

Causal

Kids with higher levels of a natural body protein called adiponectin tend to handle sugar better, even if they’re overweight.

Correlational

Kids who eat a lot of sugary foods and white bread tend to have worse insulin resistance—even if they’re not more overweight than other kids.

Correlational

Kids who don’t eat enough magnesium-rich foods tend to have more body inflammation, even if they’re not more overweight than other kids.

Correlational

People with type 2 diabetes who eat healthier are less likely to have multiple health problems at the same time.

Correlational

People with type 2 diabetes who eat the worst diets are much more likely to have all four major health problems at once: high blood sugar, high blood pressure, bad cholesterol, and being overweight.

Correlational

People with type 2 diabetes who eat poorly are much more likely to have multiple health problems at once, like high blood sugar, high blood pressure, bad cholesterol, and being overweight.

Correlational

People with type 2 diabetes who eat less healthy foods are more likely to be overweight or have high blood sugar than those who eat healthier.

Correlational

People who ate a lot more carbs than fat were a bit more likely to die from any cause, not just heart problems.

Correlational

Eating a lot of carbs instead of protein didn’t seem to raise the risk of dying from heart problems in this group, even though it did raise the risk of dying from any cause.

Correlational

People in Korea who ate way more carbs than fat were more likely to die from heart problems than those who ate more fat and fewer carbs.

Correlational

People in Korea who ate a lot more carbs than protein were slightly more likely to die sooner than those who ate a more balanced amount.

Correlational

The health benefits of eating plants come mostly from real foods like beans, vegetables, and fruits—not from fake meats or sugary vegan snacks.

Correlational

People who eat mostly plants tend to have better blood sugar control after meals, lower bad cholesterol, less inflammation, and less fat in their liver compared to those who eat more animal products.

Correlational