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I’ve been a gastric bypass/duodenal switch patient since 2003. I do not absorb fat soluble vitamins. The BioTech vitamins have been the only ones that keep my levels normal. Especi... Read More


- Irene S.

My doctor checks my Vitamin D level annually and the weekly capsule keeps me at a good level.


- Avery K.

It came to me recommended by the Grassrootshealth researchers and I will not buy any other product since taking their VItamin D plus K2. I personally need the 10,000 IU D formula t... Read More


- Alice S.

I had a great experience ordering from Bio-Tech. They did a great job getting me my vitamins at a great price and it a timely manner. Will definitely order from them in the future... Read More


- Clayton R.