Feed Biffie, feed your gut!
A card game that turns fiber into a game kids ask to play.
The helper living in your tummy
Biffie is short for Bifidobacteria, a tiny helpful bacteria that lives in your gut. Biffie and his trillions of friends help fight off bad gut invaders.
And what does Biffie love to eat? Fiber! Every plant you eat feeds Biffie and keeps your body strong.
How the cards work
Look at the plant
Each card shows a real fruit, veggie or bean kids can find at the store.
Check the number
The big number in the corner is how many grams of fiber it has.
Feed Biffie!
Play 4 different games with one deck and learn which plants pack the most fiber.
Play Fiber War right here
Flip a card, find the plant with more fiber, and win the round.
Jump right in. No sign-up needed to start.
Fiber War
Flip, then tap the card with more fiber!
How to play Fiber War
- This free version is a simpler take on the card game. It uses 32 cards, four of each of 8 plants, and you and your opponent each get 16.
- Press Flip and both players turn over their top card. Tap the card with more grams of fiber. Pick the right one and the winner takes both cards. Pick the wrong one and you get to try again.
- Same fiber number? Tap They're the same! to start a Fiber War. Each player puts 3 cards face down and flips 1 more. Higher fiber takes the whole pile.
- Quick game: play until the cards in your hand run out once, then whoever has the most cards wins. Full game: keep going until one player has all 32.
The full Feed Biffie deck has 40 plant cards worth up to 10 grams of fiber, 2 Biffie cards and 6 games to play. Shop the deck
You win!
One deck. Four ways to play.
40 plant cards, 2 Biffie cards and games that grow with your kids from Pre-K through 5th grade.
Feed Biffie
Biffie's version of Go Fish. Collect the most sets of 4 matching plant cards to win.
Fiber War
Flip at the same time. The higher fiber card wins, ties start a Fiber War, and Biffie cards beat them all.
Secret Biffie
Keep one card hidden and build the highest fiber total. Every gram is a point, and Biffie cards are worth 15.
100 Grams
Make sets of 3 or more and play rounds until someone reaches 100 grams of fiber.
Bring Feed Biffie to your school
Classroom Packs start at 5 decks, and every deck you add lowers the price per deck. Each pack comes with the free lesson guide. Tell us a little about your class at checkout so we can include the right number of take-home notes.
How much fiber do kids need?
Lots of kids don't get enough fiber. Every card in the deck shows how a real food adds up toward the daily goal.
for kids ages 4 to 8