89641
Studies that have focused on inheritance patterns rather than on specific genes have found that 80 % of the offspring of two obese parents were also obese , in contrast to less than 10 % of the offspring of two parents who were of normal weight .
 obese parents
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 obese parents