14-Day Veggie Add
Add one vegetable or fruit to at least one meal each day. Check in once a day.
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Health · Facts & stats · iChallenge network
Daily facts and stats about nutrition basics, nutrients and healthy eating facts, plus real challenges to put them to work.
How many calories per gram does fat provide?
Fat is the most energy-dense macronutrient at about 9 calories per gram.

One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Add one vegetable or fruit to at least one meal each day. Check in once a day.
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Pick a packaged food you already own, read its nutrition label and post a short write-up of what you learned.
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Cook one simple meal at home each day from ingredients you already have. Check in once a day.
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Live counts from NutriChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on NutriChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
100 points per correct answer, up to 50 more for speed, a combo multiplier for answers in a row, and a bonus for a perfect round.
Fresh rounds rotate continuously from the topic bank.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.