Displaying items by tag: Nutrition

How Nutrition, Hormones, and Prescription Drugs Affect Hair Health
Unless you are dealing with premature balding, you probably don’t spend too much time thinking about hair on a daily basis. Most of us devote a couple of minutes to styling our hair in the morning, and then spend a few minutes in the shower every evening washing and conditioning our locks. When we are at work or school, though, our hair generally becomes an afterthought.

New medical studies have begun exploring how our daily routines affect hair health. More specifically, these studies have examined how our diets and drug intake affect the strength and resiliency of our hair shafts.

Daily Routines and Hair Health
According to medical experts, there are a number of elements in our day-to-day lives that determine the long-term health of our hair. For example, diet, stress, hormonal changes, and various health disorders can all create unhealthy hair.

The nutrients you ingest on a daily basis contribute to keeping your body healthy. Naturally, these nutrients also nourish your hair, too. Doctors suggest that diets deficient in protein are linked to hair loss and unhealthy hair shafts. This is because hair is made out of protein. Eating protein enables your hair to regrow. To ensure that you are eating enough protein in your diet, opt for protein-rich foods like eggs, dairy products, and legumes.

Prescription Medication, Medical Treatments, and Hair Loss
Although most of us are aware of how chemotherapy causes tremendous hair loss, most people are unaware of the effects that prescription medication can have on the health of our hair. Drugs that treat gout, depression, arthritis, and high blood pressure have all been linked to premature hair loss. Many Americans take prescription medication on a daily basis, making them more vulnerable to hair issues.

People who take high doses of supplements and vitamins also report suffering from hair loss.

How Hormones and Stress Affect Our Hair
One of the most important day-to-day factors for hair health is stress. Stress can directly affect how hormones interact with our bodies. These hormonal interactions regulate how our hair grows. Certain hormones limit our hair growth, while other hormones promote richer, fuller hair.

One hormone that has been linked to hair loss is DHT. DHT, which is a type of testosterone, kills the hair follicle. When a follicle is killed, it doesn’t grow back. Progesterone and estrogen, on the other hand, are two hormones that encourage shiny and luxurious hair for women.

While we do not have control over the presence of certain hormones in our system, finding ways to manage stress in our day-to-day lives is a great way to promote healthy hair growth.

Top 10 Foods for Healthy Hair

Better-looking hair can start at your next meal. "Just like every other part of your body, the cells and processes that support strong, vibrant hair depend on a balanced diet," says New York nutritionist Lisa Drayer, MA, RD, author of The Beauty Diet. It can take longer to notice changes (both good or bad!) in your hair than in your skin. For example, "just one week with a poor diet can yield acne flare-ups or dry, sallow skin within days," says New York City dermatologist Cybele Fishman, MD, "but with hair, it can take a few months for a nutritional deficiency or the effects of a crash diet to show up." The nutrients you eat today help fortify the hair follicle -- from which each strand is born -- and the scalp that surrounds it. "Healthier follicles? Healthier hair. Healthier scalp? Healthier hair!" Drayer says. Of course, there's more to your hair than what you eat. Smoking, hormonal imbalances, and not enough sleep can also affect how your hair looks and feels. No magic nutrient can make up for those concerns. Still, you have a lot more leverage than you might think. If you eat a balanced, varied, protein-rich diet that focuses on the following 10 foods, you'll be giving your hair the TLC it needs and deserves.

1. Salmon

Besides being rich in protein and vitamin D (both are key to strong hair) the omega-3 fatty acids found in this tasty cold-water fish are the true superstar. Your body can't make those fatty acids, which your body needs to grow hair. About 3% of the hair shaft is make up of these fatty acids, Drayer says. Omega-3s are also found in cell membranes in the skin of your scalp, and in the natural oils that keep your scalp and hair hydrated. Other options: essential fatty acids from fish like herring, sardines, trout, and mackerel, as well as avocado, pumpkin seeds, and walnuts (see below for more wonderful things about walnuts.)

2. Walnuts

These are the only type of nut that have a significant amount of omega-3 fatty acids. They're also rich in biotin and vitamin E, which helps protect your cells from DNA damage. Since your hair rarely gets much shielding from the sun, this is especially great, Drayer says. Too little biotin can lead to hair loss. Walnuts also have copper, a mineral that helps keep your natural hair color rich and lustrous, Fishman says. Other options: Try using walnut oil in your salad dressing or stir-fry instead of canola or safflower, Fishman says.

3. Oysters

Oysters are rich in zinc, a lack of which can lead to hair loss (even in your eyelashes), as well as a dry, flaky scalp. Three ounces has a whopping 493% of your daily value. You can get some zinc through fortified cereals and whole grain breads, but oysters can boast a good level of protein too. "Remember, hair is about 97% protein," Drayer says. Without enough protein, your body can't replace the hairs that you naturally shed every day and what you do make can be dry, brittle, or weak. Other options: Get your fill of zinc with nuts, beef, and eggs.

4. Sweet Potatoes

Sweet potatoes are a great source of the antioxidant beta carotene, which your body turns into vitamin A. "Basically, every cell of the body cannot function without enough A," Fishman says. It also helps protect and produce the oils that sustain your scalp, and being low on vitamin A can even leave you with itchy, irksome dandruff. Other options: Carrots, cantaloupe, mangoes, pumpkin, and apricots are all good sources of beta carotene.

5. Eggs

A great source of protein, eggs are loaded with four key minerals: zinc, selenium, sulfur, and iron. Iron is especially important, because it helps cells carry oxygen to the hair follicles, and too little iron (anemia) is a major cause of hair loss, particularly in women, Drayer says. Other options: You can also boost your iron stores with animal sources, including chicken, fish, pork, and beef.

6. Spinach

The iron, beta carotene, folate, and vitamin C in spinach help keep hair follicles healthy and scalp oils circulating. Other options: Try similarly nutrient-rich dark, leafy vegetables such as broccoli, kale, and Swiss chard.

7. Lentils

Tiny but mighty, these legumes are teeming with protein, iron, zinc, and biotin, says Fishman, making it a great staple for vegetarian, vegans, and meat eaters. Other options: Toss other beans such as soybeans (the young ones are called edamame) and kidney beans into your soup or salad.

8. Greek yogurt

Cruise the dairy aisle for low-fat options such as Greek yogurt, which is high in hair-friendly protein, vitamin B5 (pantothenic acid -- an ingredient you'll often see on hair care product labels), and vitamin D. Emerging research links vitamin D and hair follicle health, but exactly how that works isn't clear, Fishman says. Other options: Cottage cheese, low-fat cheese, and skim milk also fit the bill.

9. Blueberries

Exotic super fruits may come and go but when it comes to vitamin C, "It's hard to top this nutrient superhero," Drayer says. C is critical for circulation to the scalp and supports the tiny blood vessels that feed the follicles. Too little C in your diet can lead to hair breakage. Other options: Kiwis, sweet potatoes, tomatoes, and strawberries.

10. Poultry

This everyday entree is extraordinary when it comes to protein, as well as hair-healthy zinc, iron, and B vitamins to keep strands strong and plentiful. Because hair is nearly all protein, "foods rich in protein are literally giving you the building blocks for hair," Drayer says. Other options: Lean cuts of beef are another good source of lean protein.

Source: Webmd 10/12