The analyses of the wines examined so far have produced the following results:

• Red wine can contain relevant amounts of polyphenols and flavonoids.
• White wine contains almost no polyphenols and flavonoids.
• Not all red wines are the same.
• The red wines examined showed differences in the polyphenol content of up to 7 times. In the case of resveratrol, up to 14 times. This means that only analysis can provide certainty that a wine contains sufficient polyphenols.
• Increased polyphenols were detected in the grape varieties Tannat, Blaufränkisch, Cabernet Sauvignon and Syrah.

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