It’s interesting that you dropped that much weight in 2 days since a keto diet should already have removed the hydrated glycogen. Assuming your TDEE is 2000 kcal then you would have dropped \~1.15 lbs of fat at best. Even if you were working out like a pro athlete (4000 kcal/day) you would still be well under 2.5 lbs of fat loss. It’s possible you had some inflammation that was resolved during the fast but otherwise I can’t think of a good explanation.
>Also, for those doing low-carb, is there a cheaper alternative to mayonnaise, besides making my own? The ones without sugar are like 5x as much, and 1/3 the size in some instances…
For your info, making mayo takes about 2 minutes with a stick blender and gives you total control of the oil used.