
Why Your A1C Can Stay High Even When You Think You're Eating Healthy
Eating healthy and eating to lower blood sugar aren't always the same thing. Portion size, carb load, meal composition, sleep and activity all change the result.
Food and metabolism, reported from the research: how meals move blood sugar, which patterns hold up in trials, and which claims do not.

Eating healthy and eating to lower blood sugar aren't always the same thing. Portion size, carb load, meal composition, sleep and activity all change the result.

Eating vegetables and protein before the carbohydrate portion of a meal can reduce the post-meal glucose rise. The short-term effect can be large; the long-term benefit is smaller.

Pasta, rice and bread all contain substantial carbohydrate, but the glucose response depends on more than the food name. Portion, structure, meal order and activity all matter.

The same food doesn't always produce the same glucose response in two people. Insulin sensitivity, meal composition, activity, sleep and the gut microbiome may all play a role.

Two foods can contain the same carbohydrate amount and still produce very different glucose responses. Fiber, structure, resistant starch and processing change how fast it arrives.

Carbohydrate drives much of the immediate glucose rise, but protein, fat and fiber change how quickly glucose appears, how much insulin is released, and what follows hours later.

Beans, berries, soda and packaged snack cakes all contain carbohydrate, but they are not metabolically equivalent. Processing changes far more than the number on the label.

Egg yolks are high in dietary cholesterol, and trials show they can raise LDL in some people. But moderate intake has generally not been linked to higher cardiovascular risk.

Olive oil is rich in unsaturated fat, and extra-virgin varieties also contain polyphenols. The strongest evidence supports using it to replace less favorable fats.
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