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July 22nd, 2011
08:58 AM ET

How much vitamin D do I need?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Question asked by Terry of Dodge City, Kansas

I have some 2,000 IU vitamin D capsules that I am about to take. I'm a 60-year-old male, in pretty good health and not overweight or underweight. I'm also active. I've read that 2,000 is the upper limit for daily dosage, and I don't think I need to take that much anyway. The capsules I have cannot be split, so could I use them every other day and be OK? Thank you very much, and have a great week. I appreciate your site and the info.
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July 15th, 2011
07:42 AM ET

Are there degrees of gluten sensitivity?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Question asked by Sue R. of Oakland, California

I know that I'm sensitive to carbs but I wanted to know how sensitive I was to gluten. I had a test taken by a nutritionist, and it came out positive. So I wanted to get tested by an official M.D., which I did. He tested me for celiac disease, even though I told him I didn't have it. He didn't understand when I told him that gluten sensitivity has different degrees of impact. Was I misinformed? I always thought it was a spectrum.

Expert answer:
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July 1st, 2011
08:46 AM ET

How do I deal with food temptation on a holiday?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Question asked by Dianne, San Jose, California

I've been working really hard at losing weight since April, and I'm concerned about all the food temptation over the Fourth of July weekend. Any suggestions? FULL POST


June 24th, 2011
07:25 AM ET

How do I lose weight on a gluten-free diet?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked by Mike of Colorado

I have celiac disease (gluten intolerance), and I am wondering how to lose weight given my restrictions in my diet.
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June 17th, 2011
07:51 AM ET

Should I avoid the 'Dirty Dozen'?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked by Karen C. of San Francisco

What are your thoughts on the latest release of the 'dirty dozen' fruits and vegetables list, released this week by the Environmental Working Group?
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June 10th, 2011
08:24 AM ET

What foods have healthy fat?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked by Mindy J. of Denham Springs, Louisiana

I recently starting tracking my calories, carbohydrates, fat, and protein. So far I have been meeting all of my goals except for the amount of fat grams. Do I need to meet a minimum number of fat grams? If so, what are some healthy options to get enough fat grams into my diet?
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June 3rd, 2011
03:51 PM ET

How much is too much phytoestrogen?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked by Keyana of Spokane, Washington:

I have two questions. What is considered to be a high/harmful amount of phytoestrogen in a woman's diet per day? And should a woman who has had cancer not take estrogen replacements or eat a diet high in phytoestrogens?

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May 27th, 2011
09:00 AM ET

How much protein should I take post-workout?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked by Jason from Afghanistan

I am currently deployed to Afghanistan. I am rigorously training in the gym at night. Pre-workout, I am taking NaNO Vapor and then as a post-workout boost I'm taking the Muscle Tech's Nitro-Tech. How much protein should I be taking for my post-workout? That's all ma'am. FULL POST


May 20th, 2011
08:23 AM ET

Can I safely diet while I'm breast-feeding?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Asked from Kimberlee Solares, Sioux Falls, South Dakota

I recently had a baby and gained 32 pounds (BMI was 19.1 to start). I am eager to get back to my pre-pregnancy weight but am breast-feeding and can find little guidance on caloric needs and optimal diet to maintain breast-feeding but to also lose weight. Any ideas? FULL POST


Is carbonated water safe to drink?
May 6th, 2011
07:20 AM ET

Is carbonated water safe to drink?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Question asked by Vicky B. of Riverview, Michigan

I just bought a home carbonator. Is there any danger to drinking carbonated water instead of still water? Some web articles state that carbonated water does not flush toxins like still water, that it causes kidney stones because it is harder to digest and that it leaches calcium from the bones.
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Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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