Hi Punky

As William says, a mistake is a mistake, so move on.

Avoid nuts and apples for the time being, you need to get your body used to low carbing before adding higher carb foods in. You asked about the carb content. If you are in the US then the carb figures already include the fibre content and so the effective carbohydrate content (ECC) is the value given minus the fibre content. However, if you are in the UK the carbohydrate content is the ECC as fibre is always given separately.

Cravings of some kind can happen not just during induction, but may happen at any time. If your body wants salt it is just possible that you have flushed out more than it likes, so try adding a little more to your food to pep it up. Rather than table salt, Lo-salt, - I think that's what it is called - might be better which is the potassium equivalent and better for you.

The apple may have taken you out of ketosis, but as William says you really want to sticks to show only a low purple colour. A deeper colour indicates that you are not drinking enough fluids, particularly water. It is an easy mistake to make as it would seem sensible to aim for a dark purple colour.

Just jump straight back on the wagon and in a day or two you will be back in ketosis and heading in the right direction.