The trick here is not only to avoid all obvious sources of carbohydrate (sweets, bread, spaghetti, rice, potatoes), but also to be careful with your protein intake. If you eat large amounts of meat, eggs and the like, the excess protein will be converted into glucose in your body. Large amounts of protein can also raise your insulin levels somewhat. This compromises optimal ketosis.
We’ve already established how chewing thoroughly can ensure you eat a meal at a leisurely pace, but there are other tricks you can use to slow down, too, like giving your fork a break between bites. A study in the Journal of the American Dietetic Association found that slow eaters took in 66 fewer calories per meal, but compared to their fast-eating peers, they felt like they had eaten more. While 66 calories might not sound like much, cutting that amount out of every meal adds up to a weight loss of more than 20 pounds a year!
Weight loss is such a complex process, the only way we can really wrap our heads around it is to drill it down into a bunch of numbers. You already know these numbers, probably as well as any weight loss expert: You know that to lose one pound of fat, you have to burn about 3500 calories over and above what you already burn each day. You don't really want to burn 3500 calories in one day, but rather to cut that down into daily calorie deficits, say cutting 500 calories a day with a combination of diet and exercise.
According to one study, cluttered kitchens can lead to over-snacking, especially if you’re feeling stressed. Researchers suggested that people might respond to a chaotic physical environment by lowering their self-control. Even if snacks aren’t on the counter, the sense of disorganization could lead you to consume more—particularly junky snacks—than you planned.
As an added bonus, your metabolism also gets a nice boost from eating these foods. It takes more energy to burn whole foods. “Avoid starchy, processed high-fat foods that are loaded with toxins that cause a buildup of inflammation. This—combined with stress—creates elevated cortisol levels and promote[s] the storage of fat in the abdomen,” Dr. Petre adds.
Now if all you care about is just losing weight, seeing the number on the scale go down, fitting into smaller clothes and being skinnier, you’ll be fine without it. If, however, you want to maintain whatever muscle and strength you currently have or potentially gain more muscle and strength while you lose this fat, or you simply want to look strong/lean/toned/muscular/other-similar-words instead of skinny/thin… then you will NOT be fine without it. For this purpose, heavy, intelligent, strength-focused weight training is required. 
In a 2015 study in the Journal of the Association for Consumer Research, scientists instructed subjects to choose either a fruit salad or a chocolate cake, then eat and evaluate their snack. Those who ate the chocolate cake in the room with the mirror found it less appealing than those who didn’t have a looking glass nearby, but those who opted for the fruit salad reported no difference in taste. In other words, the presence of a mirror makes unhealthy foods less appealing. So hang one in your kitchen to discourage the consumption of cake and the like, and then use it to watch your waistline shrink each day! 
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