Solanine is a bitter-tasting steroidal alkaloid saponin that has been isolated from all nightshades, including tomatoes, capsicum, tobacco, and eggplant. However, the most widely ingested solanine is from the consumption of potatoes. Potato leaves, stems, and shoots are naturally high in this saponin.

Are tomatoes high in solanine?

Green tomatoes contain the highest concentration of the alkoloid solanine, called tomatine. Up to 500 mg per 1 kg of fruit weight can be found in an immature, green tomato.

Is solanine in tomatoes bad for you?

There’s no evidence solanine is harmful in typical food amounts.