Are tomato seeds and skin bad for you?

They contain a poison called Lectin from an add on Google said that you will lose weight and feel better if you avoided Lectin from tomatoes and potatoes. Is this true? Also https://i.fluther.com/ works for answering questions in Fluther. link is https://en.wikipedia.org/wiki/Lectin I haven’t read all of it so don’t hurt me. I can’t find the advertisement in Google.

Lectin diet
The lectin avoidance diet excludes grains, beans, nuts, seeds, most potatoes and all dairy. Allowed foods include all seafood, meats, chicken/turkey (all fowl), eggs and most fruit and vegetables. Romaine lettuce, cruciferous veggies, cucumbers and celery are the best vegetables to include.