Below are isoflavones contents (total isoflavones, daidzein and genistein) of some foods. These isoflavones values have been taken from USDA database. Values of isoflavones are expressed in mg per 100g.
| Food product | Total isoflavones | Daidzein | Genistein |
| Soy flour, full-fat | 177,89 | 71,19 | 96,83 |
| Soy flour, textured | 148,61 | 59,62 | 78,90 |
| Soy flour, defatted | 131,19 | 57,47 | 71,21 |
| Soybeans | 128,34 | 46,46 | 73,76 |
| Soy protein concentrate, aqueous washed | 102,07 | 43,04 | 55,59 |
| Soy protein isolate | 97,43 | 33,59 | 59,62 |
| Natto | 58,93 | 21,85 | 29,04 |
| Soybean chips | 54,16 | 26,71 | 27,45 |
| Tofu, fried | 48,35 | 17,83 | 28,00 |
| Tempeh | 43,52 | 17,59 | 24,85 |
| Miso | 42,55 | 16,13 | 24,56 |
| Soybean sprouts | 40,71 | 19,12 | 21,60 |
| Tofu, soft | 29,24 | 8,59 | 20,65 |
| Tofu, silken | 27,91 | 11,13 | 15,58 |
| Soy infant formula, powder | 25,00 | 7,23 | 14,75 |
| Tofu, firm | 22,70 | 8,00 | 12,75 |
| Soy hot dog | 15,00 | 3,40 | 8,20 |
| Okara | 13,51 | 5,39 | 6,48 |
| Soy protein concentrate, alcohol extracted | 12,47 | 6,83 | 5,33 |
| Bacon, meatless | 12,10 | 2,80 | 6,90 |
| Soy milk | 9,65 | 4,45 | 6,06 |
| Vegetarian burger | 9,30 | 2,95 | 5,28 |
| Soy cheese, Mozzarella | 7,70 | 1,10 | 3,60 |
| Soy cheese, Cheddar | 7,15 | 1,80 | 2,25 |
| Soy drink | 7,01 | 2,41 | 4,60 |
| Split peas | 2,42 | 2,42 | 0,00 |
| Shoyu | 1,64 | 0,93 | 0,82 |
| Pigeon peas | 0,56 | 0,02 | 0,54 |
| Clover sprouts | 0,35 | 0,00 | 0,35 |
| Peanuts | 0,26 | 0,03 | 0,24 |
| Navy beans | 0,21 | 0,01 | 0,20 |
| Mung beans | 0,19 | 0,01 | 0,18 |
| Granola bars | 0,13 | 0,05 | 0,08 |
| Chickpeas | 0,10 | 0,04 | 0,06 |
| Green tea | 0,05 | 0,01 | 0,04 |
| Broadbeans | 0,03 | 0,02 | 0,00 |
| Cowpeas | 0,03 | 0,01 | 0,02 |
| Lima beans | 0,03 | 0,02 | 0,01 |
| Lentils | 0,01 | 0,00 | 0,00 |
| Alfalaval seeds, sprouted | 0,00 | 0,00 | 0,00 |
| Black beans | 0,00 | 0,00 | 0,00 |
| Flax seed | 0,00 | 0,00 | 0,00 |
| Rye bread | 0,00 | 0,00 | 0,00 |