Answer: Don't eat it if you don't know how old it is
Explanation: A: examine the product to see if mold or any bacteria that is visible is there. B: take a knife and cut the inside to see if a specimen started to grow in there. And finally C: keep track of your cooking :-)
Answer:
One negative is that not all the time it works a positive is sometimes it helps and works really good
Explanation:
did I answer your question?
Sugars and fats make food into energy.
Not taking good care of themselves. Not being active, poor hygiene, bad diet, weak immune system etc