Foods that rank low on the glycemic index (GI) affect your blood sugar levels more slowly. A diet rich in low-GI foods can have many health benefits.

What are low-GI foods good for?

Low-GI foods can be beneficial because they cause blood sugar levels to rise and fall more gradually.

Vegetarian diets can meet your protein needs. Here are 20 vegetarian sources of protein to get you started.

Protein sources for a vegetarian diet

A varied, well-planned vegetarian diet can meet your protein needs.

When you go without food, a series of changes happen in your body. Fasting may have benefits for your health, but there are risks to consider.

Is fasting good for you? Here's what science says.

Fasting may have benefits for your health, but there are risks to consider.

Calories are a measure of how much energy a food provides — not how it affects your health. Learn what calories really tell us and what to focus on instead.

What are calories, and how do they impact me?

Despite what you may have heard, calories are not bad for you.

Switching to a vegetarian diet may seem daunting at first, but there are many delicious options and several health benefits, too.

A guide to the vegetarian diet

In a nutshell — the more plants, the better.

Many women report fatigue. Here, we explore the most likely medical and nonmedical causes of it.

Possible causes of fatigue in women

Tiredness improves with rest, but fatigue persists even after you rest.

Discover how different aspects of your lifestyle, metabolic health, and immune system contribute to your overall health.

Hunger and Energy

What are low-GI foods good for?

Protein sources for a vegetarian diet

Is fasting good for you? Here's what science says.

What are calories, and how do they impact me?

A guide to the vegetarian diet

Possible causes of fatigue in women

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