Green beans can be eaten raw, but it's important to note that they contain lectins, which are proteins found in many plants. Pickling green beans with vinegar may slightly reduce the lectin content in the beans, but it is unlikely to completely neutralize them. Lectins are proteins found in many plants, including green beans, and they have been associated with certain digestive issues when consumed in large amounts. If you are concerned about lectin consumption, it may be best to consider cooking methods that have been shown to reduce lectin levels, such as boiling or pressure cooking.