Thanks for the info. Here are my thoughts.
Okay, protein looks like a reasonable amount, carbs are good, you’re eating plenty of calories. Are you getting hungry between meals? If so, eat more fat. It sounds as though you are not fat-adapted yet, so at this point you want to be sure your body is getting plenty of calories. If you are eating to satiety, then you are getting enough, but it’s worth thinking about, at least.
Are you getting enough salt? Two and a half teaspons daily (including the salt already in the food) is not too much. That might help with the energy level. Fiddling with your protein might also help. Try eating a more and see if you feel any better. The 53 g you are getting is right in the middle of the recommendations, but you might need more.
At 168 lbs., you may be close to the weight your body considers ideal. In that case, weight loss will be slow, no matter what. There are ways of dealing with that, but wait until full fat-adaptation before trying them.
As a woman, you may find your hormones affecting how much and when you lose. Since you don’t appear to be fat-adapted just yet, don’t worry right now. Keep on with the ketogenic diet for at least another four weeks, and let us know at that point what’s going on. By then you may be fat-adapted. I’m also hoping some of the women here will chime in with advice from a woman’s perspective.
The only things I see that might be interfering are the blue cheese dressing and the diet soda. Double check the list of ingredients on the dressing and make sure sugar is not among the first three or four ingredients. Try cutting out the soda, and see what happens; it’s possible you are reacting to the aspartame. People will cricize the peanuts, but only because they have a lot of carbohydrate, being legumes, which can make it hard to stay under 20g. But you are, so not to worry.
The upshot is, I wouldn’t worry just yet, and I’d see if a bit more protein yields more energy. Give it another four weeks, and then re-evaluate. And keep us updated on how you’re doing. If you’ve only been keto for a month-ish, it’s quite possible that a bit more time will see good things happening.
Brian’s post and your post both popped up, so I’ll take the liberty of responding. What Brian is getting at is that each meal raises your insulin level, so eating too many times a day can prevent it from going down. It’s when insulin is low that we burn fat. So an eating pattern that allows insulin to stay as low as possible for as long as possible can be helpful. You would still be eating the same amount of food, just in a more compressed time window. Something to consider, but perhaps not just yet?