There are a couple of vitamins that the Induction level of Atkins IS deficient in. There is NO vitamin C in the initial level until you reintroduce green & red pepper or berries and melon. (Eskimo/Inuit who exist on a diet of meat and fat have apparently a means of creating a form of Vitamin C out of fresh meat.)

In addition, the diuretic nature of the low carb diet tends to wash out the water soluble vitamins: C & all the B vitamins. So you could be losing some of those and need to take in extra.

It is well known that easy bruising can indicate a need for Vitamin C. So take at least 1 gram per day for a week and see what happens. If the easy bruising (no pain, no memory of bumping the area) continues, then see your doctor.

Vitamin B is mostly found in dark green vegetables or those of deep yellow/orange colour and grains. Only the deep green ones are on the early levels of low carbing.

If you decided to supplement B vitamins, take a "B complex" so that you don't get out of balance with one of the B's.