Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Gifts Best Sellers Specials New Products Product Trials Conditions A-Z

Customer Reviews

Bluebonnet Nutrition, Vitamin B-1, 100 mg, 100 Vcaps

$10.36
$12.95
Savings of: $2.59 (20% Off)
3.7 out of 5 based on 3 reviews
Write a Review
Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Reviews English
Sort by

Items 1-3 of 3 total

Caution for hypothyroid, low blood sugar and immune dysfunction - B1 is an iodine, magnesium and manganese antagonist

6 people found the following review helpful

Posted by Health-Is-Wealth on Feb 19, 2014

Purchased at iHerb

Vitamin B1 - iodine, magnesium, manganese, copper and silica antagonist (among others) - all in some way essential for thyroid/endocrine/collagen health. High doses of B1 can therefore lead to: immune dysfunction, hypothyroidism if iodine intake is inadequate; hypothyroid/low blood sugar/migraine-headaches if manganese intake is inadequate - especially when combined with higher intakes of other less-obvious iodine/manganese antagonists such as niacin, B6, magnesium, calcium, vit C, boron, etc. Additionally, B1 is an essential cofactor for transketolase - suggest caution for people who take medications that also upregulate transketolase (e.g. asthma steroids), because more B1 may lead to depletion of other co-factors and essential nutrients (e.g. EFA's), creating a nasty catch-22 situation. B1 is also mildly anticholinergic - something to be mindful of, because for some people that can be an issue. High intake of B1 is also likely to cause/contribute to bad armpit BO. The plus side - the caps are easy to open up in order to sprinkle a trace on food. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

great!

1 person found the following review helpful

Posted by Reviewer2060864 on Jan 11, 2012

Purchased at iHerb

one time when I use this product, I can feel the instant absorption in my difficient/depressed brain. I can feel the calming effect almost immediatly.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Bugs Beware

Posted by maria-and-xenios on Oct 20, 2013

Purchased at iHerb

During the spring-summer-autumn months, I depend on B1 to keep mosquitos, chiggers, and fleas at bay. One in the morning and one at night keep the bugs away.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Items 1-3 of 3 total