Listen in as Dr. Mike provides the answers to a wealth of health and wellness questions. Here you'll find the answers to a wealth of health and wellness questions posed by Healthy Talk fans. Listen in because what you know helps ensure healthy choices you can live with. Today on Healthy Talk, you wanted to know:Is there any difference between red and green apples? Why are some both colors?The red hue you see in apples come from snthocyanin, which is a plant-based antioxidant. Red apples have more anthocyanins in the peel than green apples.As an apple ripens, it changes colors from a yellowish green to a red. Apples are also crossbred between red and green.How do you know when cuts need stitches?If you cut yourself, as the pain starts to set in and as it bleeds, you may wonder if you need stitches. When you look at your cut, depending on where it happens (like your fingers or toes), it could be extremely sensitive due to nerves. Another thing you want to look for is the shape of the cut. If the cut is even, and if it doesn't bleed a lot, you probably don't need stitches.Is it ever safe to lose more than five pounds in one week? I'm curious because of the yogurt diet.Dr. Mike knows about the yogurt diet, but if you're really looking at what they're suggesting you eat, you're cutting your calories drastically. This may allow you to lose weight at first, but you're depriving yourself and will eventually go into diet shock. Your body will begin to store fat, because essentially it's starving, so when the yogurt diet is over, you're going to gain all the weight back.If you have a health question or concern, Dr. Mike encourages you to write him at askdrmikesmith@radiomd.com or call in, toll-free, to the LIVE radio show (1.844.305.7800) so he can provide you with support and helpful advice.