The Environmental Protection Agency has warned for years about limiting the amount of canned tuna we eat in order to avoid mercury poisoning. Children and pregnant women in particular should eat only around three 8-ounce portions per month if eating the canned white variety. A safer choice is canned light tuna, which has about one-third the parts per million of mercury in comparison, which is safe enough to eat once a week. An even better choice? The brand Safe Catch tests every fish for mercury before processing it, so it's almost guaranteed to be completely free of mercury with each flaky bite.

Many of us take vitamins and supplements on a daily basis to help us feel better or get the necessary nutrition we may be lacking. So it seems natural we could give these same natural supplements to cats and dogs to help them be healthy, right? Not so fast. According to the Food and Drug Administration, if your pet already eats a balanced diet, giving him more vitamins and minerals isn't necessarily a beneficial thing. Too much calcium can actually cause skeletal problems for large-breed puppies; vitamin A can harm blood vessels and cause dehydration; and vitamin D -- which gives humans energy -- can force your pooch to stop eating and his muscles to atrophy. Instead of risking it, ask your vet.

Did you know you can make your own eco-friendly all-purpose cleaner from old orange and lemon peels? Start by liberally sprinkling table salt on top of the peels and let it rest for 20 minutes. The salt will draw the essential oils to the surface of the peel. Then brush off the salt and place the peels in a jar; fill it halfway with white vinegar, and then top it off with water. Let it sit for two weeks, and then decant into a spray bottle for a great-smelling and truly effective all-purpose cleaner you can use on virtually any surface.