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Can Cranberry Juice False Positive Or Negative Urine Test Results?

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Posted on Mon, 13 Apr 2015
Question: can either flaxseed 1000mg x 2 & cranberry 350mg x 2 or 3 create positive/negative result on a urine test?
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Answered by Dr. Rahul Tawde (39 minutes later)
Brief Answer:
Neither of them won't cause false positive/negative urine test...

Detailed Answer:
Hi,

1. Cranberry is a diuretic and usually will help remove the drugs from the body. Thus, it won't cause a false urine drug test.

2. Flaxseed is a good source of dietary fiber and omega 3 fatty acids. It won't interfere with the urine test neither.

The only intefering system of flaxseed is with estrogen. Actually, flaxseed is broken down into chemicals called "lignans" which are similar to female hormone Estrogen. Thus, its use is weakened the natural estrogen function.
Consequently, they will be helpful in certain types of breast cancer which require estrogen to thrive.

Hope it answered to your queries!
Dr.Sejdini
Note: For further follow up on related General & Family Physician Click here.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Rahul Tawde

General & Family Physician

Practicing since :1980

Answered : 1 Question

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Can Cranberry Juice False Positive Or Negative Urine Test Results?

Brief Answer: Neither of them won't cause false positive/negative urine test... Detailed Answer: Hi, 1. Cranberry is a diuretic and usually will help remove the drugs from the body. Thus, it won't cause a false urine drug test. 2. Flaxseed is a good source of dietary fiber and omega 3 fatty acids. It won't interfere with the urine test neither. The only intefering system of flaxseed is with estrogen. Actually, flaxseed is broken down into chemicals called "lignans" which are similar to female hormone Estrogen. Thus, its use is weakened the natural estrogen function. Consequently, they will be helpful in certain types of breast cancer which require estrogen to thrive. Hope it answered to your queries! Dr.Sejdini