5172
In contrast , male rats show excess weight gain when fed saccharin - sweetened yogurt supplements when fed both standard chow diets and diets high in fat and sugar , and regardless of their proneness to excess weight gain .
 saccharin, sugar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 saccharin, sugar