David L. Katz, MD, responds to a reader in the September 2007 issue of The Oprah Magazine about the merits of eating soy in relation to preventing cancer. His response causes me to pause even more about jumping on any diet bandwagon.

Katz says we should eat soy foods -- just not too much because the evidence linking soy to breast cancer, for example, is mixed.

In comparing soy-eating Japanese women with American women who eat very little soy, researchers find lower rates of breast cancer in the Japanese women. But in a test tube, soy's plant estrogens can speed cancer cell growth. Maybe soy behaves differently in the body than it does in a tube. Or maybe soy has both negative and positive effects on breast cancer. Perhaps it's not soy at all. It could be that the populations eating soy are benefiting from not eating something else, like meat -- the saturated fat found in red meat has been linked to higher cancer rates. Replacing steak with something else may be the protective key.

Lee National Denim Day is one of the largest single-day fundraisers for breast cancer. In October, Lee Jeans encourages millions of people nationwide to slip into their favorite jeans and make a $5 donation to support the fight against breast cancer.

Through the Women's Cancer Programs of the Entertainment Industry Foundation, Lee National Denim Day will support groundbreaking early detection and treatment research at leading cancer centers and provide community breast cancer education services nationwide.

Here's an opportunity for you to share your personal breast cancer experiences, and help further research too.

Molly, a college student at BYU, has launched a national research project aimed at examining the relationship between couple leisure satisfaction and marital satisfaction of couples in which one spouse has breast cancer. Molly and her study partner Dr. Ramon Zabriskie hope to identify new avenues for cost effective intervention targeted at improving the quality of life for adult cancer patients and their spouses.

Both the cancer patient and spouse/partner will be asked to complete a short online questionnaire. No identifying information is required, and all responses will be kept confidential.

Have you been thinking about lung cancer and longing for the most reliable facts and figures on this number one cancer killer? If so, you're in luck because the National Lung Cancer Partnership has just released a new and free resource called Living With a Diagnosis of Lung Cancer. The booklet features basic questions about what a lung cancer diagnosis means.

"When people hear the words, 'You have lung cancer,' their mind starts racing, and they hear or remember very little of what comes next," said Dr. Joan Schiller, M.D., president of the National Lung Cancer Partnership. "Even in this age of the Internet with information at your fingertips, patients and their families often don't know what to ask or are intimidated about doing so. This booklet was designed to be an easy-to-read resource for many of the initial questions people might have, from what kinds of doctors will be treating you to whether or not a clinical trial is right for you."

Patients can access this resource online, where other links to additional resources are available.

President Bush is keeping up with his colon cancer screenings. Good thing -- because five small growths were found and removed during his latest scan on Saturday.

The polyps found inside his large intestine were all less than one centimeter in size and did not appear suspicious. Still, they were sent to the National Naval Medical Center in Bethesda, Md., to be microscopically examined for signs of cancer. Polyps can turn into cancer, so finding them early is the best way to prevent the disease and improve the odds of surviving it. It takes 48 to 72 hours for pathology reports to come back, but the majority of polyps this size are unlikely to be cancerous.

Bush is no stranger to polyps. In 1998, after a similar scan, two polyps were found. In 1999, two more surfaced. And while none were found during his 2002 screening, he has become a prime candidate for regular examinations. For the general population, colonoscopy tests are recommended every 10 years.

I'm always skeptical about the connection between certain foods and cancer. There's just so much back and forth -- the lycopene found in tomatoes prevents cancer and then it doesn't, for example -- that I don't base any life decisions solely on so-called cancer prevention foods. I simply do what is best for my health. If it happens to keep cancer at bay, then I consider it a bonus.

I eat fruits and vegetables because I know they're good for me. It was nice, while it lasted, to think I was also cutting my risk of cancer recurrence but when it comes down to it, fruits and veggies are better than sweets and candies and junky carbohydrates. So they'll remain a staple in my life -- even though a large, seven-year study published in today's Journal of American Medical Association dashes all hopes that a diet low in fat and jam-packed with fruits and vegetables prevents the return of breast cancer.

Five daily servings of fruits and veggies are recommended in the United States. This is more than most Americans get yet still doesn't make a difference for those trying to minimize their chances of breast cancer recurrence.

The National Cancer Institute (NCI) is launching a three-year pilot phase of a new program that will help bring state of the art care to patients in community hospitals across the country.

The NCI Community Cancer Centers Program (NCCCP) is designed to encourage the collaboration of private practice medical, surgical, and radiation oncologists. Building on this expanded network, the NCCCP will explore ways of sharing information, via electronic medical records, to further enhance patient care. Evidence from a wide range of studies suggests that cancer patients diagnosed and treated in a setting of coordinated multi-specialty care and clinical research may live longer and have a better quality of life.

The pilot program will research new and enhanced ways to assist, educate, and better treat the needs of under served populations -- including elderly, rural, inner-city, and low-income patients. As well as racial and ethnic groups with unusually high cancer rates.

Yes, Farrah Fawcett's cancer has returned, just three months after she was given the all-clear following treatment for rectal cancer. But not all of what is appearing in the media is true, and Fawcett now finds herself fighting for both her life and the truth.

The National Enquirer was right about Fawcett's recurrence -- a malignant polyp has been found in the area where her original cancer began. But reporters for this magazine are wrong about their previous take on her illness.

Farrah Begs: Let me Die was one previous headline. Such words were never spoken, says Fawcett who is planning to file a lawsuit against the Enquirer for libel, invasion of privacy, and infliction of emotional distress regarding numerous fabricated articles about her cancer journey.

This negativity is not only harmful to Fawcett and her family, says her spokesperson. It also jeopardizes Fawcett's chances for a successful recovery, and it's disrespectful to thousands of others surviving cancer.

The National Inquirer was the first to break the news about Farrah's diagnosis of anal cancer before the star confirmed it.

The same paper is now saying that Farrah's cancer has returned. According to the article, doctors have found a small, malignant polyp. The actress was previously treated with radiation and chemotherapy. The new plan would be to place a small metallic seed in the area that would kill the cancerous polyp.

Can't believe everything you read -- especially from this source. Even if it is true that her cancer has recurred, I think most of what is said in the article is probably wrong.

It's been suspected that taking too many vitamins may spike men's risk of dying from prostate cancer. On Wednesday, the biggest study yet to link high-dose multivitamins and prostate damage was published in the Journal of the National Cancer Institute.

Government scientists have been looking at the diet and health of almost 300,000 men. One third reported taking a daily multivitamin. Five percent were heavy users, marked by use more than seven times per week. Within five years of the study's launch, 10,241 men had been diagnosed with prostate cancer. About 1,476 had an advanced form of the disease. And 179 died.

It seems heavy multivitamin users were nearly twice as likely to get fatal prostate cancer as men who never took the pills. Yet, oddly, researchers found no link between multivitamin use and early-stage prostate cancer. It could be that vitamins have little effect until a tumor appears -- and then it spurs growth.

More studies are on the horizon for this topic, which is becoming more and more pressing.

On Tuesday, researchers announced that a three-drug cocktail may help women with HER2-positive breast cancer better than any other drug used on its own. About one quarter of women with breast cancer make up this HER2 category.

Tests on mice revealed using the three drugs along with breast cancer drug tamoxifen helped wipe out tumors altogether. And the tumors did not come back. This is the first time mice were cured of a very aggressive human breast tumor. Incidentally, when a single drug was used, tumors returned within several weeks.

The three wonder drugs used in this study -- all are monoclonal antibodies that precisely target certain aspects of tumors -- are the experimental drug pertuzumab; trastuzumab, also known as Herceptin; and gefitinib, or Iressa.

Published in the Journal of the National Cancer Institute, this study supports the notion that HER2-positive tumors eventually become resistant to one drug and attacking them on several fronts seems to work better.

Back in the news: the link between hormone replacement therapy (HRT) and breast cancer. This time, the connection is seemingly more conclusive than before, when some argued that many factors influence the risk of breast cancer, that HRT could not do the job all on its own.

Now, two separate studies offer up powerful evidence that HRT is linked to tumor growth. Case in point: when use of the therapy drops, so do incidences of breast cancer.

New figures in the New England Journal of Medicine suggest there have been 16,000 fewer cases of breast cancer nationwide since mid-2002, when women stopped taking their hormone pills following the federal Women's Health Initiative announcement connecting the therapy with increased risk of breast cancer, stroke, and heart attack.

Many did not want to believe HRT was to blame for so many breast cancer diagnoses. And maybe it's not the actual cause of the disease, but the fuel for tumors trying to grow.

These new findings do not appear to be a statistical fluke, says one doctor. Numbers have been computed and re-computed, and the message is clear: HRT is strongly implicated as the guilty party. There is just no other culprit, says a statistician at the National Cancer Institute.

Wyeth, maker of Premarin and Prempro -- two forms of hormone therapy -- continues to caution women against drawing any conclusions about HRT and breast cancer. There still may be broader explanation for the decline in cases, say their spokespeople.

Those venturing into space face a very serious occupational hazard -- cancer. The disease can be caused by radiation from the cosmic rays and solar flares astronauts encounter when they travel beyond the Earth's protective magnetic layer or magnetosphere.

British scientists are working on rectifying this problem by creating a Star Trek-style deflector shield to protect astronauts from radiation.

Think about this:

Scientists wish to mimic the magnetic field that protects the Earth with shields deployed around spacecraft and on the surfaces of planets to deflect harmful energetic particles.

Details, presented at the Royal Astronomical Society's National Astronomy Meeting in Preston, UK, include the following:

• The idea has been linked to the deflector shields that protect the USS Enterprise and other spacecraft on Star Trek. The shields, like on the TV show, could be switched on and off.

• In order to make the shield, scientists must generate a magnetic field and then fill it with ionized gas, or plasma. As energetic particles interact with the plasma, energy is sapped away from them, causing them to slow down.

• Protective shelters would not work on long-duration space journeys due to the drip of energized particles, thought to be as harmful as large solar storms.

"The nice thing is that magnet technology is really quite evolved here on Earth," says Dr. Mike Hapgood, from the Didcot-based research centre. The question is can you take it into space?"

A team from Rutherford-Appleton plans to build an artificial magnetosphere in the laboratory. They would eventually like to fly a test satellite which would test the technology in space.

On Friday, President Bush re-authorized a federal program designed to help low-income women get screening for both breast and cervical cancer.

While funding has not yet been allocated for the National Breast and Cervical Cancer Early Detection Program, the President's support for this outreach initiative is considered by many a victory in the fight against cancer.

Bush, whose mother-in-law survived cancer, says "early detection makes treatment more effective. It gives hope to patients and it saves lives."

Currently, the government spends $202 million on this program and has reached three million women who may not have otherwise received screening. With the President's new stamp of approval, the program is authorized to spend up to $275 million.