Are all Americans fat and eat McDonalds every day and drink Pepsi?

Definitely not true, I've been to 'Murica they also have:

A & W Restaurants
Amigos/Kings Classic
Arby's
Arctic Circle Restaurants
Arthur Treacher's
Atlanta Bread Company
Au Bon Pain
Auntie Anne's
Baja Fresh
Bakers Square
Baskin-Robbins
Ben & Jerry's
Blimpies
Bojangles' Famous Chicken 'n Biscuits
Boston Market
Braum's
Burger Chef
Burger King
Burger Street
Burgerville
Captain D's Seafood Kitchen
Carino's Italian Grill
Carl's Jr.
Carrows
Carvel Ice Cream
Charley's Grilled Subs
Checkers / Rally's
Cheeburger Cheeburger
Chevys Fresh Mex
Chicken Express
Chick-fil-A
Chronic Tacos
Chuck-A-Rama
Church's / Texas Chicken
Cinnabon
Claim Jumper
Coco's Bakery
Cold Stone Creamery
Cookout
Copeland's
Country Buffet
Culver's
Dairy Queen
Del Taco
Dixie Chili and Deli
Don Pablo's
Druther's
Dunkin' Donuts
EatZi's
Eat'n Park
Eegee's
El Chico
El Pollo Loco
El Taco Tote
Elephant Bar
Elevation Burger
Famous Dave's
Farmer Boys
Fatburger
Firehouse Subs
Five Guys Famous Burgers and Fries
Freddy's Frozen Custard &Steakburgers
Golden Chick
Good Times Burgers & Frozen Custard
Great Steak
Green Burrito / Red Burrito
The Habit Burger Grill
The Halal Guys
Hardee's
Huddle House
In-N-Out Burger
Jack in the Box
Jack's
Jersey Mike's Subs
Jimmy John's
Jim's Restaurants
Johnny Rockets
Kewpee
Krispy Kreme
L&L Hawaiian Barbecue
Lee Roy Selmon's
Lee's Famous Recipe Chicken
Lion's Choice
Long John Silver's
Luby's
McDonald's
Milo's Hamburgers
Moe's Southwest Grill
Mr. Hero
Mrs. Fields
Mrs. Winner's Chicken & Biscuits
Naugles
Panda Express
Penn Station East Coast Subs
Pita Pit
Popeyes Chicken & Biscuits
Port of Subs
Potbelly Sandwich Works
Quizno's Classic Subs
Raising Cane's Chicken Fingers
Rax
Robeks
Roy Rogers Restaurants
Runza
Saladworks
Sbarro
Schlotzsky's
Seattle's Best Coffee
Shake Shack
Skyline Chili
Sneaky Pete's
Sonic Drive-In
Spangles
Steak 'n Shake
Steak Escape
Stir Crazy
Sub Station II
Subway
Swensen's
Swensons
Taco Bell
Taco Bueno
Taco John's
Taco Mayo
Taco Tico
Taco Time
ThunderCloud Subs
Twin Peaks
Umami Burger
Wendy's
Wetzel's Pretzels
Whataburger
White Castle
Wienerschnitzel
Zaxby's
Zero's Subs
Zippy's

and a diet Pepsi (with a mars bar on top)