Statements: All fruits are sweet. All sweet things are not good for health. Conclusions: (I) All fruits are not good for health. (II) Some fruits are not good for health.

First Premise is Universal Affirmative (A&type).
Second Premise can be written in the form of Universal Negative (E-type) as
No sweet thing is good for health
All fruits are sweet. ↔ No sweet thing is good for health.
A + E ⇒ E–type of Conclusion "No fruit is good for health".
Thus both the Conclusions follow.