Can you get sick from eating lettuce that has turned dark green in spots if wash it off?

No, you should not eat lettuce if it has turned dark green in spots, even if you wash it off. Dark green spots on lettuce indicate the presence of rot and bacteria, which washing alone will not remove. Consuming spoiled lettuce can lead to foodborne illnesses that can cause symptoms like stomach pain, nausea, and vomiting. It's best to avoid eating any produce that shows signs of spoilage, regardless of washing.