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Table 1 Food groupings used for principal component analysis to identify dietary patterns during adolescence

From: Vegetarian-style dietary pattern during adolescence has long-term positive impact on bone from adolescence to young adulthood: a longitudinal study

Food groups Food items
Dark green vegetables Asparagus, green beans, broccoli, lettuce, green pepper, seaweed, spinach, mixed greens, snow peas
Eggs Eggs
Non-refined grains Whole grains and partially whole grains (60%) mostly cereals, mixed granola/grain bar, cracker, oat flakes, wheat germ, whole wheat breads, puffed wheat, brown and wild rice, popcorn, barley
Fruit juice 100% Apple cider, apple, lemon, lime, orange juice canned or bottled, unsweetened cranberry, etc.
Legumes, nuts and seeds Beans (black, kidney, lima, navy, small white, soy), chickpeas, hummus, tofu, brazil nuts, coconut, almond, hazelnuts, walnuts, cashew, peanuts, mixed nuts, pecans, peanut butter, sunflower seeds
Added fats Saturated fats such as butter, margarine, meatless bacon bits and coconut oil, and unsaturated fats such as vegetable oil, cooking oil, mayonnaise, olive oil, pesto
Fruits All fresh and dried fruits, canned fruits (not sweetened), avocado, olives
Low-fat milk 1%, skim, rice beverage, soy beverage
Fruit drinks Fruit juice (sweetened), fruit drinks, iced tea
Refined grains Refined cereals, white bread, white rice, refined pasta, noodles, pop corns, pie crust, pizza pop
Cream Sour cream, cream (10%, whipped or low fat)
Poultry Chicken and turkey
Processed meats Burger patties (beef, ham, chicken, etc.), sausages, bacon, canned meat, dry ribs, fried chicken, nugget
High-fat milk 2%, whole or almond milk
Tomato Tomato and its products
Red meat Beef, ham, pork, bison (ground, loin, rib, steak, stew, fried, pot roast, balls, loaf, chop)
Cheese Cheddar, cream cheese, feta, gouda, mozzarella, parmesan, Swiss, cottage, ricotta, cheese sauce
Yogurt Yogurt (plain, vanilla or fruit)
Desserts and sweets Sweet baked products, milk desserts, jelly, chocolate, sugar, jam, syrups, honey and candies
Fish and seafood Fish, shrimp, lobster, mussels, pickerel, prawns, scallops
Dressings, sauces, gravy Gravy, dressings, Caesar, French, ranch, Italian, 1000 island, Alfredo, blue cheese, chip dip, Greek, honey garlic, white sauce, sandwich spread, tartar, teen, sundried tomato
Vegetables, others Carrots, snap beans, cabbage, cauliflower, celery, cucumber, garlic, mushroom, pepper, squash, bean sprouts, beets, onion, eggplant, radish, zucchini, potato, green peas, corn, sweet potato and soups
Chips & fries Potato chips, fries, corn chips, nacho, hash brown
Soft drinks Soft drinks (sugar-sweetened or diet)
Others Salt, spices, seasonings, additives, pickles (dill, beet), low fat sauces (mustard, hot, soy, teriyaki), vinegar