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Mayo Clinic Q&A: the pros and cons of a hair transplant; the safety of artificial colors in food

HAIR TRANSPLANT HAS PROS AND CONS

What is involved in a hair transplant, and how long does it last? How does this differ from hair plugs? I'm only 34 but have lost a lot of hair already and have tried hair-growth shampoo without much luck.

A hair transplant is a form of skin graft that rearranges the hair you have by taking hair and skin from one area of your head and moving it to another. It's an effective, permanent treatment for hair loss. A hair transplant involves significant cost and recovery time. In most cases, it requires multiple procedures over time to get the best results. Therefore, hair transplants generally are used only when other hair-loss treatments have not worked.

The concept of transplanting hair dates back to the 1950s, when it was discovered that sections of hair and skin could be moved from the back or sides of the scalp — areas typically unaffected by age-related hair loss — to bald sections of the scalp. The hair in the transplanted areas would continue to grow as it did before it was moved.

A hair transplant technique used for many years involved relocating skin grafts with 10 to 15 hairs per graft — about the size and shape of a pencil eraser. Small spaces were left between each clump of hair. The look of these transplants gave rise to the term hair plugs. That technique is no longer commonly used. Instead, hair is transplanted via micrografts, in which only one or two hairs are included in each graft. This achieves a more natural look.

As you decide whether to pursue a hair transplant, there are several factors to consider. First, consider the hair-loss genetics in your family. Picture how your male relatives on both sides of your family look (or looked) in their 50s and 60s. If you see commonalities in how they have lost their hair, it can give you a good idea of how your hair loss may progress.

That's important, because hair transplants don't change your genetics. Because you're only in your 30s, it's likely your hair loss will continue for some time. That means if you get a hair transplant now to cover the bald areas, you may need additional transplants to cover the areas where you continue to lose hair. Otherwise, you'll end up with bald patches between the transplanted areas and the areas where your natural hair remains.

Second, think about recovery time. When hair is transplanted, it looks the same for about a month. Then, it falls out. After that, it takes three to five months before the transplanted hair begins to grow again. It takes additional time beyond that for the hair to get to an appropriate length to be able to style. That means you won't see the best results from a hair transplant until about eight to 12 months after the procedure.

Third, hair transplants can be expensive. The cost may be $10,000 or more per procedure. Because it's considered a cosmetic surgery when used for age-related hair loss, hair transplants typically are not covered by medical insurance.

With these considerations in mind, it's usually recommended that you try other hair-loss treatments, such as the over-the-counter minoxidil lotion, before you undergo a hair transplant. If nonprescription options aren't effective, talk to your health care provider about the prescription medication finasteride. It's taken daily as a pill. Many men taking finasteride experience a slowing of hair loss, and some show some new hair growth.

A note of caution, too. Some practitioners offer procedures that involve implanting synthetic fibers into your scalp that look like real hair. That approach can have serious side effects, as your body is likely to react to the foreign materials. To ensure safety, work with a board-certified physician who is trained and experienced in treatment for hair loss.

Randall Roenigk, M.D., Dermatology, Mayo Clinic, Rochester, Minn.

ARTIFICIAL COLORS LIKELY HARMLESS, BUT TRY NATURALLY COLORFUL FOODS

I notice a lot of food products, including cereals, no longer use artificial colors. Is this because food dyes are harmful?

There's no solid evidence that artificial colors in food cause health problems. But there aren't any health benefits associated with artificial colors, so removing them from foods isn't a bad idea. When you consider color in your food, rather than focusing on artificial color, look to foods' natural colors as a guide. Including food with a variety of natural colors can help you get a range of healthy vitamins and nutrients.

In the United States, the U.S. Food and Drug Administration regulates the additives that can be put into food, including artificial colors. Before any additives are used in food, the FDA puts them through a rigorous approval process to ensure safety.

That doesn't mean there is no risk, however. Total safety can't be guaranteed. For example, certain artificial colors may trigger allergic reactions in some people. Instead, the FDA uses a standard of "reasonable certainty of no harm" with typical use when considering whether an additive should be approved. All the additives in the foods you find in your local grocery store have met the FDA's safety standards.

But, as you note, some companies are choosing to take artificial colors out of foods. That decision likely is driven not by safety concerns or scientific evidence, but rather by market demand for such a move. Many consumers are interested in reducing the amount of additives in their foods, and, with that in mind, they gravitate toward those without artificial colors. In addition, by removing the artificial colors, companies may be hoping to make the foods appear more "natural," even though many are still highly processed.

Artificial colors usually are added into foods to make the food more appealing. As part of human preference, we are apt to eat more when there is more variety in our food, and that includes a variety of color. Bright hues in food tend to increase our appetite for them. You can take advantage of that preference for variety as you choose a healthy diet.

Instead of foods that are colored with artificial additives, look for foods that are naturally colorful. Red strawberries and raspberries; purple cabbage and eggplant; orange carrots and tangerines; yellow peppers and lemons; and many kinds of green, leafy vegetables are all examples of colorful, healthy food choices.

Another benefit to including naturally colorful foods in your daily meal planning is that many of them are fruits and vegetables low in energy density. That means larger portions have a smaller number of calories, compared to foods higher in energy density that have many calories in smaller portions. You can eat more of the foods lower in energy density and feel full with fewer calories.

The bottom line here is that, when considering color in your foods, think natural. Although it's unlikely that the artificial colors in breakfast cereals and other processed foods will harm you, they won't help you either. For a healthier alternative, get your colorful food fix from the ones nature made that way.

Katherine Zeratsky, R.D.N., L.D., Endocrinology and Nutrition, Mayo Clinic, Rochester, Minn.

Mayo Clinic Q & A is an educational resource and doesn't replace regular medical care. Email a question to MayoClinicQ&[email protected] For more information, visitmayoclinic.org. © 2017 Mayo Foundation for Medical Education and Research. Distributed by Tribune Content Agency, LLC. All rights reserved.

Mayo Clinic Q&A: the pros and cons of a hair transplant; the safety of artificial colors in food 10/12/17 [Last modified: Thursday, October 12, 2017 10:35am]
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