Especially the peels and seeds as well as the core of the listed fruits contain high amounts of oligomeric proanthocyanidins (OPC).
| Proanthocyanidins content – given in mg – per 100 g of food. | |
| Fruit | |
| Bananas | 3,24 |
| Apricots (with skin) | 9,20 |
| Sweet cherries | 14,02 |
| Grapes, red | 15,69 |
| Nectarines (with peel) | 16,30 |
| Blackberries | 18,07 |
| Grapes, green | 21,71 |
| Blueberries | 43,98 |
| Blueberries | 43,98 |
| Apples (Golden Delicious), with skin | 52,84 |
| Apples (Gala), with peel | 55,80 |
| Strawberries | 62,18 |
| Apples (Granny Smith), with peel | 84,02 |
| Plums (with skin) | 152,62 |
| Cranberries | 178,03 |
| Nuts | |
| Peanuts, salted and roasted | 10,51 |
| Almonds | 95,99 |
| Hazelnuts | 168,39 |
| Drinks | |
| Beer | 1,40 |
| Apple juice (unsweetened) | 7,26 |
| Grape juice, purple (unsweetened) | 18,91 |
| Red wine | 33,99 |
| Miscellaneous | |
| Dark chocolate | 154,20 |
| Grape seed | 202,11 |
| Cocoa beans | 6.531,98 |
Note: Foods in bold are particularly rich in oligomeric proanthocyanidins (OPC).
