Wednesday, March 24, 2010

Blood Pressure.They Don't Call it the Silent Killer for Nothing!

I read a great story over the weekend in the New York Times Sunday Magazine titled "High Altitude" and wanted to be sure to share it with you. If you have the time, click here to read the entire article.
In summary, a middle-aged woman starts to feel terrible and her discomfort lasts for over a month. In the beginning she felt tired, suffering from fatigue and weakness. Over the course of the month she became weaker, felt like sleeping all the time, had a hard time getting through the day, felt nauseated and had occasional diarrhea.

She went to her primary care doctor of nearly 20 years for some help and was not listened to. She went to a new doctor looking for help and was taken seriously; this new doctor took tests and would be in touch. The day after visiting with the new doctor, the woman went shopping with her daughter and things went from bad to worse quickly. She had a hard time breathing, she could hear her blood pounding, her eyes starting hurting and she rushed to get home. When she got home the phone rang, it was her new doctor asking her to come in right away with her husband. The news was not good - she had to go to the hospital immediately after her appointment with her physician.

Her platelets were low, her kidneys were failing and her blood pressure was 225/115, alarmingly high. After running a series of tests, ruling out some potential diseases as the culprit, it turns out she had been suffering from untreated high blood pressure for years. She had absolutely no history of being treated for hypertension (high blood pressure). The cause for all her issues, it turns out, was malignant hypertension - a physiological crisis seen in people with chronically untreated high blood pressure.

After six months of treatment the woman finally felt better. She is currenty taking two forms of medicine, her vision is better and her energy is up, but her kidneys are still not working properly. If only she had been properly treated in the beginning by her doctor, all this may have been avoided.

Here are the facts according to the story:

• Although only 1 percent of those with hypertension will develop malignant hypertension, high blood pressure is so common that this, mere 1 percent can translate into hundreds of thousands of cases each year;

• High blood pressure is called “the silent killer” because it is usually asymptomatic and leads to other diseases — like heart disease and stroke — that do the killing;

• The current guidelines put a “normal” blood pressure at less than 120/80 and recommend treatment after two readings over 140/90.

How do you know if you are at risk and what steps should you take if you suffer from hypertension? Read on!

Hypertension, or high blood pressure, is a disease that very often does not have any symptoms, making it difficult to diagnose without regular screening. Fortunately, the screening process is fast, cheap and effective. Be sure to schedule your regular annual physical that includes a blood pressure check. Other places to have your blood pressure checked include, your dentist's office, hospital clinic, school nurse's office, company clinic, pharmacy, or at a health fair.

Are you at risk?

The following risk factors can influence your likelihood of developing hypertension:

Family history- If your parents or siblings have hypertension you are more likely to develop this disease.

Age and gender- As we age, our blood vessels become less elastic, and this increased rigidity can result in elevated blood pressure. Gender combined with age also has influence: A higher percentage of men than women have hypertension until age 45. From ages 45 to 54 and 55 to 64, the percentages of men and women with hypertension are similar. After that, a much higher percentage of women have hypertension than men.

Lack of physical activity- It’s no secret that physical activity influences cardiovascular health, and the absence of it can increase your risk of developing hypertension.

Diet- A diet low in healthful fruit, vegetables and whole grains is often high in processed foods that are both nutritionally deficient and often loaded with sodium. Sodium can increase blood pressure by causing the body to retain water thus increasing the volume of blood that has to be pumped through the body.

Despite “doing everything right”, one can still develop hypertension, so early detection through screening is the best tool to stay healthy. For useful information check out the American Heart Association’s website at http://www.americanheart.org.

Tips for treating hypertension
If you have already been diagnosed with hypertension there are several steps you can take to stat healthy.

Drugs-Take your prescribed medications. Anti-hypertensive agents and diuretics are the most frequently prescribed.

Exercise- Exercise can help reduce blood pressure. Research shows that the higher the blood pressure and less active the person was to begin with, the greater the likelihood that exercise will be effective in reducing blood pressure.

Weight control- If you are overweight, reduce your portion sizes and exercise more to lose weight. Weight loss is the most effective dietary measure you can take to lower your blood pressure if you are overweight.

Potassium- A high potassium intake can help protect against stroke. Foods high in potassium are: bananas, citrus fruits, vegetables, legumes, whole grains, fish and poultry.

Sodium/salt- Individuals who are salt-sensitive should try to reduce their salt or sodium intake. Individuals who eat foods high in salt often happen to eat fewer potassium containing foods. Processed foods are usually high in sodium and low in potassium. The American Heart Association recommends limiting sodium intake to 2-3 grams (2000-3000 mg) per day.

Calcium- Calcium may be important in both prevention and treatment of high blood pressure. Studies of populations at risk of developing high blood pressure show that a low dietary intake of calcium correlates with a high prevalence of high blood pressure. Calcium supplements have been shown to lower blood pressure in individuals with and without high blood pressure. It’s recommended that you meet the dietary recommendations for calcium intake. Good sources of calcium are low-fat milk, cheese, yogurt and broccoli.

Alcohol- Two or more drinks per day are associated with high blood pressure and strokes. If you drink alcohol, limit your intake to no more than one drink per day.

Fat- Fat’s contribution to arteriosclerosis is well known, especially saturated fat. Cutting down on saturated fat intake can reduce the risk of complications associated with high blood pressure (heart disease and strokes).

Other factors- Magnesium appears to protect against high blood pressure, and vitamin C also appears to have a protective role. Good sources of magnesium are dark green vegetables, legumes, whole grains and seafood. Good sources of vitamin C are fruits (citrus, especially) and vegetables.

Overall, weight management, exercise and a healthy diet can help protect against the long-term risks associated with high blood pressure. These tips can also improve quality of life, regardless of your age.

Category Blood Pressure Level from the National High Blood Pressure Education Program

Category:    Systolic  / Diastolic  (mm Hg)

Normal:  <120  / <80

Pre-Hypertension: 120–139 / 80–89

Stage 1 Hypertension: 140–159 / 90–99

Stage 2 Hypertension: 160 / 100
Source: The National Heart, Lung and Blood Institute

Thursday, March 11, 2010

FDA Health and Diet Survey Shows Consumers Reading Food Labels More!

On March 2nd, the FDA released findings from their 2008 Health and Diet telephone survey of more than 2,500 adults in every state and the District of Columbia.

 
Great news, the FDA reported that "more than half of consumers in the United States often read the food label when buying a product for the first time." According to the findings, this is a 10 percent increase from 2002. I can't tell you how often I am asked by clients, friends, family etc. how to read a nutrition label. It can be tricky. But I am thrilled to learn that people are more concerned with what they are consuming.

With regard to how diet can affect health, here are some key findings:
  • More U.S. consumers know of the relationship between diet and heart disease. Ninety-one percent knew of this link, an 8 percent jump from 2002. In addition, 62 percent of consumers mentioned fats as a factor related to heart disease, compared to 53 percent in 2002.
  • Eighty-one percent of consumers know that certain foods or drinks may help prevent heart disease or heart attacks. This result showed no change from 2002. While fruits and vegetables were most frequently linked with reducing heart disease, fewer people made this link in 2008 than in 2002.
  • Consumers' awareness that trans fats in the diet may raise the risk of heart disease nearly doubled over just four years, from 32 percent in 2004 to 62 percent.
  • Correct identification that omega-3 fatty acids may lower the risk of heart disease increased, from 31 percent in 2004, to 52 percent in 2008.
  • Knowledge that saturated fat may raise the risk of heart disease was stable: it was 74 percent in 2004 and 73 percent in 2008.

With regard to food labels, some key findings include:

  • More than half (54 percent) of consumers said they read a product's label the first time they buy the product. That's a 10 percent increase from 2002.
  • Among those who in 2008 reported they read the nutrition label the first time they buy a product
    • two-thirds use the label “often” to check how high or low a food is in calories and in substances such as salt, vitamins, and fat
    • 55 percent “often” use the label to get a general idea of the food's nutritional content
    • 46 percent “often” use the calorie information on the label. Thirty-four percent rarely or never use the calorie information
  • Thirty-eight percent of consumers said they use nutrient content claims (such as “low-fat,” “high-fiber,” and “cholesterol-free”) “often”; 34 percent answered “sometimes.”
  • When asked if they refer to the label claim of “0 grams of trans fat,” 31 percent said “often” and 36 percent said “sometimes.”

 
It also appears consumers are getting more savvy when it comes to label "claims" which I am happy to see. As I have shared in the past, some of these new "healthy" label endorsements are just false or sometimes paid advertisements! Remember the “Smart Choices” blog post I wrote back in October of 2009? In August of 2009 the FDA requested that the Smart Choices program be suspended because their claims were misleading consumers. If you did not get a chance to read that blog posting I recommend you check it out to see how easy it is to be tricked or misled by retailers in buying “healthy” food.

 
According to the findings:

  • 41 percent of consumers believe that all or most of claims such as “low-fat,” “high-fiber,” or “cholesterol-free” are accurate, while 
  • 56 percent believe that some or none of them are accurate.
Here are a few tips to help you get started should you be new to reading labels:

 
1. First look at the serving size. The product you are eating may contain fewer than 3 grams of sugar in its 1/2 cup serving, but not if you are eating double or triple that amount.

 
2. After you look at the serving size, see if it's "worth" the calories reported on the label; if not put it back on the shelf

 
3. Check how many grams of saturated fat there are in one serving. Total fat is worth checking out too, but sticking with the American Heart Association's recommendation that less that 7% of calories come from saturated fats is most important to heart health than total fat.

 
4. Look at the grams of fiber. If a product claims to be "high in fiber" there must be at least 5 grams of fiber per serving.

 
5. When looking at the % daily value on the far right of the label, keep in mind that these percentages are based on a 2,000 calorie/day diet. Everyone reading the label will have different needs so adjust these values accordingly

 

Let us know what you think? Do you read the label the first time you buy a new food?

 

These findings appear on FDA's Consumer Updates page, which features the latest on all FDA-regulated products. Date Posted: March 2, 2010. To see the full survey results click on this link http://www.fda.gov/Food/ScienceResearch/ResearchAreas/ConsumerResearch/ucm193895.htm