根据短文内容和首字母的提示，填写所缺单词。
Chocolate is one of the most popular foods in the world．Not many foods are as n_________（1）as chocolate．But is it good or bad for your health? There are many different ideas．
It's reported that eating chocolate makes people feel happy and excited．There are more and more chocolate lovers all over the world，especially the y_________（2）．Here's great news for them．Last month，American researchers（研究人员）said that dark chocolate w_________（3）good for the heart．
On the other hand，some scientists think there is a lot of fat（脂肪）in chocolate．The fat g_________（4）too much cholesterol（胆固醇）and that can be bad for the heart．The sugar in chocolate may hurt the teeth．When children love chocolate，they may eat a lot of it．But in their p_________（5）opinion，eating chocolate too much is bad for the kids．