When you include the American Institute for Cancer Research in your estate plans, you make a major difference in the fight against cancer.

Corporate Champions who partner with the American Institute for Cancer Research stand at the forefront of the fight against cancer

The Continuous Update Project (CUP) is an ongoing program that analyzes global research on how diet, nutrition and physical activity affect cancer risk and survival.

A major milestone in cancer research, the Third Expert Report analyzes and synthesizes the evidence gathered in CUP reports and serves as a vital resource for anyone interested in preventing cancer.

Whether you are a healthcare provider, a researcher, or just someone who wants to learn more about cancer prevention, we’re here to help.

AICR has pushed research to new heights, and has helped thousands of communities better understand the intersection of lifestyle, nutrition, and cancer.

Read real-life accounts of how AICR is changing lives through cancer prevention and survivorship.

We bring a detailed policy framework to our advocacy efforts, and provide lawmakers with the scientific evidence they need to achieve our objectives.

AICR champions research that increases understanding of the relationship between nutrition, lifestyle, and cancer.

AICR’s resources can help you navigate questions about nutrition and lifestyle, and empower you to advocate for your health.

AICR is committed to putting what we know about cancer prevention into action. To help you live healthier, we’ve taken the latest research and made 10 Cancer Prevention Recommendations.

June 9, 2014 | 2 minute read

HealthTalk: Is it true that grapefruit could affect breast cancer risk?

Q:       Is it true that grapefruit could affect breast cancer risk?

 

A:        Research has raised questions, but it is inconclusive and limited so we do not yet have a clear answer. Natural compounds unique to grapefruit can inhibit the breakdown of certain medications, resulting in higher blood levels of those drugs. (Check with your doctor if you are taking medications.) It is possible that those compounds could act in the same way to estrogen, raising its blood levels. High blood levels of estrogen can spur the development of some breast cancers.

There are three major population studies on the topic: one showing an increased risk, the other two not showing any increased risk. A 2007 population study found that postmenopausal women who ate on average a quarter grapefruit a day had higher risk of breast cancer than those who ate none. In 2008 and 2009, two other major studies found no link between the same amount of grapefruit consumption and breast cancer risk or estrogen levels. One recent intervention study has tested how grapefruit and grapefruit juice affect estrogen levels. Results were inconsistent, with differences seen between grapefruit products, specific forms of estrogen and among individual women.

Grapefruit has a lot to offer nutritionally. It is a good source of vitamin C and several phytochemicals that may have health-protective effects. In laboratory studies, one called naringenin can inhibit growth of breast and several other cancer cells and inhibit early stages of colorectal cancer development.

There is not enough research for a recommendation on grapefruit intake. Women who are concerned may wish to avoid or limit grapefruit and grapefruit juice until additional research provides more clarity. Otherwise, it’s reasonable to enjoy grapefruit as one among a wide variety of fruits.

For more information on the research: AICR’s Foods that Fight Cancer: Grapefruit – Ask the Expert

For more on reducing risk for breast cancer: Learn More About Cancer: Breast Cancer

Leave a Reply

Your email address will not be published. Required fields are marked *

More From the Blog

Close