July 2008 Archives

In the last post, we covered hormones and antibiotics in milk. At this point, most science suggests that the synthetic hormones and antibiotics that are used with many milk producing cows do not cause cancer or other health problem. And conversely there is no risk if you prefer to drink milk without added hormones or antibiotics.

It's a different story when it comes to pasteurization!

Pasteurization: There is a lot of people now who are proponents of drinking "raw", unpasteurized milk. They say that pasteurization destroys enzymes and "healthy" bacteria. This is true. However, the important thing to realize is that pasteurization also kills very harmful bacteria like E.coli, salmonella and campylobacter, which are very dangerous pathogens. Unpasteurized milk can also contain mycobacterium bovis, which can cause tuberculosis.

Before pasteurization, the likelihood was much higher for intestinal tuberculosis and GI infections that cause diarrhea, stomach cramps, fever and vomiting. The FDA suggests not drinking unpasteurized milk because of the increased risk of illness. Some like the taste of unpasteurized milk, but need to be aware of the risk they are taking when making the decision.

Personally, I don't want to risk the infection and I've never had a taste for raw milk. If you are worried about not getting enough healthy bacteria, see my posts on prebiotics and probiotics and foods that contain healthy bacteria.

Organic Milk: The definition of organic milk is hard to come by, but it basically means that the milk comes from a cow whose milk production was not prompted by an artificial growth hormone, whose feed was not grown with pesticides and which had access to pasture.

Organic milk is still pasteurized, as law requires all milk sold commercially to be pasteurized. For a lot of people, they choose organic because it doesn't have antibiotics or artificial hormones. Others choose it for animal welfare reasons or the fact that it's probably better for the environment.

Personally, I choose it because of all of those reasons but mostly because it tastes better to me!

Bottom Line:

If you are avoiding antibiotics or hormones, or are concerned about animal well being or the environment, buy organic milk.

Remember you can always drink soy or rice milk as a substitute for cow's milk if you don't tolerate lactose or you just don't want to deal with cow's milk!

Got Milk?

- Julie

[Reference: Know Your Milk: It's Not All Equal. Food and Fitness Advisor]

I know there is a lot of talk about milk. Do the added hormones cause kids to start puberty early? Should I drink unpasteurized milk, and what about antibiotics?  What about organic milk?  It can be very confusing, especially as the prices of food go up and you're trying to keep your budget.

What Are the Facts? Hormones and Antibiotics

Many people feel that the more natural something it is, the better it is for  you. For the most part, this is true. However, there are some scientific advances that make our food much safer to eat and don't significantly increase risk for disease. It all comes down to weighing out the benefits and the risks.

Hormones: There is no such thing as hormone free milk. All milk contains some BST, which is a hormone that cows naturally produce. The synthetic hormone that is sometimes given to cows is called rBST. While you might think that drinking hormones would increase your bodies level of hormones, this is not true.

First off, rBST is metabolized by the cow just the same as the naturally occurring hormone, BST. Secondly, protein hormones are broken down in your stomach and have no effect on your hormone level. Therefore, there is not an increased risk for cancer or other disease by drinking milk with rBST.

However, if you're still not sure, there is no risk in drinking milk from a cow that was not treated with rBST.

Antibiotics: Many cows are treated with antibiotics for infections. The FDA requires that during and following antibiotic treatment, for 96 hours the cows milk must be discarded.

It is possible that milk containing antibiotics can get into the food supply but we would be unlikely to know because of the difficulty in enforcing the FDA rules. It would be problematic for those who are allergic to antibiotics, or extremely sensitive, neither of which are common. The most common antibiotics used for cows are ampicillin and erythromycin.

The chief risk in drinking milk from a cow that was not treated with antibiotics is if that cow had an untreated infection, which can taint the milk, yuk!

The Bottom Line:

The FDA regulates milk, but many feel that they do not do enough to keep our food supply safe. When it comes to milk, evidence so far suggests that there is not an increased risk for cancer or other diseases by drinking pasteurized milk with rBST or from cows treated with antibiotics. However, if you prefer to drink milk without hormones or antibiotics, there is no significant risk but it is usually more expensive.

Stay tuned for Part II where we will look at pasteurization, organic, and "raw" milk.

- Julie

[Reference: Know Your Milk: It's Not All Equal. Food and Fitness Advisor]

A few weeks ago I posted on having fun in the sun. I stressed the importance of sun screen to protect your body against UV rays and cancer. Today I will focus on how to choose a sunscreen and why you want to be picky.

Sunscreen Facts to Know:

Did you know that 4 out of 5 sunscreens either don't adequately protect you from the sun's harmful UV rays or contain harmful chemicals? The SPF rating is only part of what you need to know, since it only tells you about UVB (sunburn) protection.

The Environmental Work Group (the same people who brought us the 'dirty dozen') created a rating system that includes critical information on UVA protection, how stable the product is in the sun, and potential health hazards of ingredients. You will be surprised to know that some popular companies didn't have ANY sunscreens that made their recommended list.

The Top 10

Here is a list of the EWG's top 10 sunscreens:

  1. Keys Soap Solar Rx Therapeutic Sunblock, SPF 30   
  2. Trukid Sunny Days Facestick Mineral Sunscreen UVA/UVB Broad Spectrum, SPF 30+   
  3. California Baby Sunblock Stick No Fragrance, SPF 30+   
  4. Badger Sunscreen, SPF 30   
  5. Marie Veronique Skin Therapy Sun Serum   
  6. Lavera Sunscreen Neutral, SPF 40   
  7. Vanicream Sunscreen, SPF 35   
  8. UV Natural Sunscreen, SPF 30+   
  9. Sun Science Sport Formula, SPF 30   
  10. Soleo Organics Sunscreen all natural Sunscreen, SPF 30+

You may not recognize most of these names. In order to help you find some more common brands, here is a list of 10 common sunscreens that the EWG recommends. Pay attention to the particular product because some of the brands only make one safe product:

  1. Blue Lizard (anything without oxybenzone)
  2. California Baby (anything with SPF 30+)
  3. CVS (with zinc oxide)
  4. Jason Natural Cosmetics (Sunbrellas Mineral Based Sunblock)
  5. Kiss My Face ("Paraben Free" series)
  6. Neutrogena (Sensitive Skin Sunblock)
  7. Olay (Defense Daily UV Moisturizer with zinc)
  8. SkinCeuticals (Physical UV Defense)
  9. Solar Sense (Clear Zinc for Face)
  10. Walgreens (Zinc Oxide for Face, Nose, & Ears)

Who DIDN'T Make the List:

In case you're interested in which brands didn't have any sunscreens that made the recommended list, here are a few:

  • Aveeno
  • Banana Boat
  • Bull Frog
  • Coppertone
  • Cover Girl
  • Hawaiian Tropic
  • Paradise Gold

I found this particularly interesting because many of these brands are the ones that are found in the displays at the grocery or drug stores.

How to Choose:

For those who are interested, you can read the ingredient list on sunscreens to help choose a quality product. Be sure to buy a product with SPF 30 or higher and at least 7% zinc oxide or titanium dioxide.

Things to avoid include oxybenzone or benzophenone-3, spray and powder sunscreens, fragrance, sunscreen with added bug repellent.

For a printable shopping guide, click here.

Be sun safe and have a GREAT 4th of July!
- Julie

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About this Archive

This page is an archive of entries from July 2008 listed from newest to oldest.

June 2008 is the previous archive.

August 2008 is the next archive.

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