| No. | Foodstuffs | Number of samples (n) | No. | Foodstuffs | Number of samples (n) |
| Cereals, bread | Mushrooms | ||||
| 1 | Oats grains | 10 | 47 | Cepe | 29 |
| 2 | Oats flakes | 11 | 48 | Brown cap boletus | 20 |
| 3 | Buckwheat | 12 | 49 | Orange cap boletus | 11 |
| 4 | Rice | 18 | 50 | Yellow boletus | 7 |
| 5 | Millet | 9 | 51 | Saffron milk cap | 5 |
| 6 | Semolina | 7 | 52 | Agaric honey | 13 |
| 7 | Noodles | 12 | 53 | Paxil | 12 |
| 8 | Wheat grain | 7 | 54 | Chanterelle | 17 |
| 9 | Wheat flour | 5 | 55 | Russule | 15 |
| 10 | Wheat bread | 9 | 56 | Coral milky cap | 6 |
| 11 | Rye grains | 5 | 57 | Champignon | 21 |
| 12 | Rye flour | 6 | 58 | Oyster mushroom | 11 |
| 13 | Rye bread | 11 | 59 | Champignon (agrofirm) | 11 |
| Vegetables, greens, legumes | 60 | Oyster mushroom (agrofirm) | 10 | ||
| 14 | Potatoes | 63 | Fish, seafood | ||
| 15 | Beet | 24 | 61 | Pike | 7 |
| 16 | Cabbage | 22 | 62 | Asp | 6 |
| 17 | Celery cabbage | 10 | 63 | Sabrefish | 7 |
| 18 | Garden radish | 11 | 64 | European carp | 6 |
| 19 | Radish | 21 | 65 | Roach | 7 |
| 20 | Aubergines | 9 | 66 | Bream | 9 |
| 21 | Tomatoes | 26 | 67 | Pikeperch | 5 |
| 22 | Carrots | 57 | 68 | Sheatfish | 5 |
| 23 | Maize | 18 | 69 | Zope | 5 |
| 24 | Spinach | 19 | 70 | River perch | 9 |
| 25 | Parsley | 22 | 71 | Cod | 11 |
| 26 | Bulb onion | 15 | 72 | Herring | 5 |
| 27 | Garlic | 9 | 73 | Mullet | 7 |
| 28 | Lettuce | 24 | 74 | Grouper | 6 |
| 29 | Dill | 20 | 75 | Flatfish | 5 |
| 30 | Haricot | 13 | 76 | Alaska pollack | 10 |