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Isoflavone content of selected foods
| Food | Total isoflavones (milligrams per 100 grams) |
| Bacon bits, meatless | 118.50 |
| Cereal, Kashi Go-Lean | 17.4 |
| Chicken nuggets, meatless, Worthington FriChik | 12.2 |
| Cinnamon roll, McDonald’s | 6 |
| Doughnuts, cake-type, plain | 5.31 |
| Egg | 0.05 |
| Infant formula, Enfamil Next Step, soy formula, not reconstituted | 25 |
| Miso soup | 1.52 |
| Natto | 82.29 |
| Ramen noodle soup, beef flavor | 1.23 |
| Pistachios | 3.63 |
| Red clover | 21 |
| Snack bar, Cliff Bar, Crunchy Peanut Butter Flavor | 26.9 |
| Soybeans, green, raw (includes edamame) | 48.95 |
| Soy cheese, American | 17.95 |
| Soy cheese, cheddar | 6.87 |
| Soy chips | 54.16 |
| Soy protein drink | 81.65 |
| Soy sauce made from hydrolyzed vegetable protein | 0.10 |
| Soy sauce made from soy and wheat (shoyu) | 1.18 |
| Soy yogurt | 33.17 |
| Taco, Jack in the Box Beef Monster | 15.9 |
| Tofu, firm, cooked | 22.05 |
| Tofu, fried | 34.78 |
| Veggie burger | 6.39 |
Source: United States Department of Agriculture, Nutrient Data Laboratory
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