Hi Jeff,
If worried, have a complete physical done and check weight, blood pressure, cholesterol, blood sugar etc... I have these done once a year at work and have had very good numbers with being on this diet for 5 yrs in March.
I emphasize the fruits/veggies/nuts and dried fruits with my diet... so I have a bit more at my disposal than you do since you eliminate sugar.
I would agree can be a bit scarey eliminating entire food group.
Tim