also posted on the Cholestrol/Heart Disease forum. Am on Day 3 of first week of Atkins and take 50 mg./day of Atenolol. Had blood screen yesterday and results were "very good" according to nurse. Realized should probably notify doc that I was attempting this, as he and I had discussed that I am carrying around about 30 pounds too many. I will call in the a.m. because am concerned about combination of Atenolol and Atkins on Day 3. Reassurance please ... that I am not in any immediate danger from this combination tonight? Sorry if this sounds so ridiculous but I don't know. Thanks.