
- With Mayo Clinic nutritionist
Katherine Zeratsky, R.D., L.D.
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Katherine Zeratsky, R.D., L.D.
Katherine Zeratsky, R.D., L.D.
As a specialty editor for the Food & Nutrition Center, Katherine Zeratsky helps you sort through the facts and figures, the fads and the hype to learn more about nutrition and diet.
A Marinette, Wis., native, she is certified in dietetics by the state of Minnesota and the American Dietetic Association. She has been with Mayo Clinic since 1999.
She is active in nutrition-related curriculum and course development in pediatrics at Mayo Clinic Rochester and nutrition education related to the physiology and recommended intakes for premature infants.
Other areas of interest include breast milk and formula safety, neonatal feeding, and nutrition for breast-feeding mothers.
She graduated from the University of Wisconsin-Madison, served a dietetic internship at the University of Iowa Hospitals and Clinics, and worked as a registered dietitian and health risk counselor at ThedaCare of Appleton, Wis., before joining the Mayo Clinic staff.
Nutrition basics (20)
- Nutrition rating system: What's behind the new food labels?
- Underweight? See how to add pounds healthfully
- Caffeine: Is it dehydrating or not?
- see all in Nutrition basics
Healthy diets (8)
- Diverticulitis diet: Can certain foods trigger an attack?
- Butter vs. margarine: Which is better for my heart?
- Detox diets: Do they offer any health benefits?
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Healthy cooking (10)
- Canned pumpkin: Better than fresh?
- Lentils: How do I cook with them?
- Food poisoning: How long can you safely keep leftovers?
- see all in Healthy cooking
Healthy menus and shopping strategies (6)
- Sea salt vs. table salt: Which is healthier?
- White whole-wheat bread: Is it nutritious?
- What is BPA? Should I be worried about it?
- see all in Healthy menus and shopping strategies
Nutritional supplements (15)
- Vitamin D toxicity: What if you get too much?
- Prenatal vitamins: OK for women who aren't pregnant?
- Fiber supplements: Are they safe to take every day?
- see all in Nutritional supplements
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Vitamin water: Better than plain water?
Is vitamin water a healthier choice than plain water?
Answer
from Katherine Zeratsky, R.D., L.D.
Vitamin water is fortified with various vitamins and other additives, including a sweetener that adds calories to the drink. If you're eating a balanced diet or taking a multivitamin, you won't likely benefit from drinking vitamin water. If you're trying to lose weight, the calories in vitamin water will only work against you. And if you have heart or kidney disease, the potassium in some types of vitamin water may be a concern. Too much potassium can interrupt your heart or kidney function. Remember, fruits, vegetables and other whole foods are the best sources of vitamins and minerals. Of course, water is important, too. If you don't care for plain water, try sparkling water or a squirt of lemon or cranberry juice in your water.
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