By Lizzy Smith | Posted - Sep 7th, 2015

 

 

 

 

Vitamin B6 Levels At Its Impact On The Cancer Survivor's Immune System

As always, consult with your doctor prior to taking any dietary supplements or changing your diet.

BY JEAN LAMANTIA

What is Vitamin B6?

Vitamin B6 is one of the water soluble vitamins. This means that it is found in the water component of the food we eat and not the fat or oil portion. It also means that excess B6 will be excreted in urine and not stored in our fat cells. B6 is actually seven different compounds, which have many roles in our body including metabolism and hemoglobin synthesis. If your vitamin B6 levels are too low, this can show itself as impaired glucose tolerance.

Do Low Levels of Vitamin B6 Impair My Immune System?

Vitamin B6 appears to play a role in immune function. For example, a significant portion of elderly people have low vitamin B6 levels. The elderly also have a less robust immune system. Low B6 levels have also been seen in cancer patients and low B6 levels are associated with an increased risk of breast cancer. These links are being investigated to see if there is causation or just simply correlation.

Do Low Levels of Vitamin B6 Promote Inflammation?

It was observed in the Framingham heart study that participants with lower levels of vitamin B6 had higher levels of inflammation. This is important because inflammation is associated with cancer and other chronic diseases. Specifically, the Framingham heart study found that those with B6 depletion have lower levels of lymphocytes and higher levels of neutrophils. The fact that neutrophils are high indicates the presence of inflammation. In addition, this observation of lower lymphocytes and higher neutrophils is important because researchers have discovered that the ratio of Lymphocyte:Neutrophil is an important predictor of survival from cancer. So, vitamin B6 deficiency affects both sides of this ratio in a negative way—you could call this a double-whammy!

Bottom Line

Vitamin B6 appears to be important in supporting a healthy immune system.

What Should I Do As A Cancer Survivor Who Wants To Thrive After Cancer?

Aim to meet your dietary requirement for vitamin B6. Recommended amounts are included in the table below. It is pretty easy to meet your requirement by eating a mixed diet as B6 is found in a variety of foods. Getting your B6 requirement from food is the preferred source—you will also get all of the other great nutrients that are found in the food item! Certain populations are more at risk for deficiency including the elderly, alcoholics and people with type 1 diabetes, liver disease and rheumatoid arthritis. If for some reason you are not able to meet your requirement via diet, then you could consider a supplement. The supplement could be in the form of a multivitamin, B complex or stand-alone vitamin B6. It is important to respect the dosage and remember that more is not better—the upper limit is 100 mg per day. Also, it’s important to remember that taking a supplement is not an alternative to a healthy diet. The supplement should just be considered the safety net and not the long-term solution to a healthy diet. Vitamin B6 Requirements This table shows you some selected dietary sources of vitamin B6. Vitamin B6 Food Sources Achieving My Vitamin B6 Intake for the Day Here is an example of how a person could achieve their daily vitamin B6 requirement by just selecting a few items from the list above. This isn’t a complete intake for the day, just a few selected items. As you can see, it’s pretty easy to meet or exceed the goal of 1.3 mg per day.

Selected Foods Eaten Throughout the Day
Breakfast

½ cup fortified breakfast cereal (0.5   mg) 1 banana (0.4 mg) Lunch ½ cup chick peas in salad at lunch  (0.55 mg) Afternoon Snack 1 oz of nuts (0.1   mg) Dinner 3 oz of turkey at dinner (0.4 mg) ½ cup of squash at dinner (0.2 mg) Total: 2.15 mg

Am I Getting Enough?

If you want to track your intake there are a couple of tools you can use. These require you to log your food intake and then they will provide the analysis of your intake. If you will embark on this, I suggest choosing 3 typical days to analyze.

Diet Analysis Tools
Super Tracker From the USDAEat Tracker from Dietitians of Canada

  Jean LaMantia is a registered dietician, cancer survivor, and best selling author of The Essential Cancer Treatment Nutrition Guide and Cookbook. She can be found at www.jeanlamantia.com.

 
Lizzy Smith
About the Author

Lizzy Smith - Lizzy Smith was diagnosed with myeloma in 2012 at age 44. Within days, she left her job, ended her marriage, moved, and entered treatment. "To the extent I'm able, I want to prove that despite life's biggest challenges, it is possible to survive and come out stronger than ever," she says.

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