Posted by Reviewer1650808 on Oct 04, 2012 | Verified Purchase
I changed to this acetyl l-carnitine after previously taking the Doctor's Best brand. I'm going to change back because I didn't seem to tolerate this one too well. I think it was probably the added B6.
I have started on one capsule a day and it's giving me more energy! But is also seems to be creating a thiamine deficiency so I'm going to supplement that as well.
For a product that is using that claim as a selling point, these are fairly hard to get down. They are large and taste awful.
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