Here are several resources for calorie counting, health information, food, and fitness.
Calorie Counters
Calorie Counting Tips and Tools
Article from verywell.com showing how to read nutrition information labels and more.
Cronometer.com
The best calorie counter out there. I use it everyday.
Nutritionix Database
In addition to grocery store foods the Nutritionix database also shows restaurant foods.
University of Sydney Glycemic Index Database
The Glycemic Index Database shows the glycemic index and glycemic load for foods entered. Glycemic load is more accurate.
Food Data Central
Food Data Central is provided by the US Government and paid for by American tax dollars. This is where most websites get most of their nutrition information.
Fitness
Fitness Blender
Provides hundreds of free fitness videos.
National Heart, Lung, and Blood Institute Body Mass Index Calculator
Body mass index calculator provided by the US Government and paid for with American tax dollars. This will show you the perfect weight for your height.
Food
Fruit Seasons
Shows which fruits are in season.
Seasonality Chart: Vegetables
Shows which vegetables are in season.
StillTasty: Your Ultimate Shelf Life Guide
Shows the shelf life of many food items.
Health Information
NutritionAction.com
Produced by Center for Science in the Public Interest (CSPI) and provides free health and nutrition information.
NutritionFacts.org
Website by Dr. Michael Greger, M.D. that provides free informational health videos that explain peer reviewed scientific studies performed on humans in a way that the average person can understand.
Physicians Committee for Responsible Medicine
Website by Neal D. Barnard, M.D. that provides free health information about vegetarianism and veganism.