How Much Protein Do I Need Per Day?
Most healthy adults need at least 0.8 grams of protein per kilogram of body weight per day, the Recommended Dietary Allowance.
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How Much Sodium Per Day Is Healthy?
The Dietary Guidelines for Americans advise adults to keep sodium under 2,300 milligrams a day, about the amount in one teaspoon of table salt.
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What Are Micronutrients? Vitamins and Minerals Explained
Micronutrients are the vitamins and minerals your body needs in small amounts to make energy, build bones and blood, support immunity and keep cells working.
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What Are Ultra-Processed Foods? A Clear, No-Panic Guide
Ultra-processed foods are industrial products made mostly from substances extracted or refined from foods, often with additives such as flavorings, emulsifiers or colors that you wouldn't use in a home kitchen.
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What Is a Balanced Plate? A Simple Template for Any Meal
A balanced plate is a simple way to build meals: fill about half your plate with vegetables and fruit, about a quarter with whole grains or other starchy foods, and about a quarter with protein, then add a little healthy fat and a drink like water or milk.
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What Is Clean Eating? A Plain-English Guide
Clean eating is an informal way of describing a diet built mostly on whole or minimally processed foods, such as vegetables, fruits, whole grains, beans, nuts, fish and lean proteins, with fewer heavily processed products.
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What Is Nutrient Density? Getting More Nutrition From Every Bite
Nutrient density describes how many vitamins, minerals, fiber, protein and other beneficial nutrients a food provides relative to its calories.
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What Is TDEE? Total Daily Energy Expenditure Explained
TDEE, or total daily energy expenditure, is the total number of calories your body uses in a day.
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What Is the Glycemic Index? A Simple Guide to GI and GL
The glycemic index (GI) ranks carbohydrate foods from 0 to 100 by how quickly they raise blood sugar compared with pure glucose.
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What Is the Keto Diet? How It Works, Pros and Cons
The keto, or ketogenic, diet is a very low-carbohydrate, high-fat eating plan that typically limits carbs to about 20 to 50 grams a day.
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Best Food Tracking Apps in 2026
Our pick for a food tracking app in 2026 is PlateLens: a food diary you can fill by photo, barcode, typing or voice, with more than 80 nutrients recorded for each food and a free plan that does not expire.
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