You can get it on your iPhone or Android, and it’s optional to pair it with a smartwatch. Once you’re in a plan, the app will tell you what your swim workout is, and you can take it with you to the pool to complete. I suggest syncing it with a smartwatch (details here) because it records everything and coaches you through the sets, but you can also bring your phone or a printed version of the workout to the pool.
Variations on the Johns Hopkins protocol are common. The initiation can be performed using outpatient clinics rather than requiring a stay in hospital. Often, no initial fast is used (fasting increases the risk of acidosis, hypoglycaemia, and weight loss). Rather than increasing meal sizes over the three-day initiation, some institutions maintain meal size, but alter the ketogenic ratio from 2:1 to 4:1.[9]
Advocates for the diet recommend that it be seriously considered after two medications have failed, as the chance of other drugs succeeding is only 10%.[9][31][32] The diet can be considered earlier for some epilepsy and genetic syndromes where it has shown particular usefulness. These include Dravet syndrome, infantile spasms, myoclonic-astatic epilepsy, and tuberous sclerosis complex.[9][33]
OK, that’s all good but you still need to hit your “climbing” weight. Well, as Eddy Merckx rather eloquently said, “Eat Less, Ride More”. Don’t we all wish. Basically it all comes down to taking in fewer calories than your daily caloric requirements, otherwise known as a caloric deficit. Some athletes can successfully ‘diet by math‘ to lose weight and if you want to try, I recommend a 500 calorie caloric deficit per day.  Over 1 week that is 1 lb.  10 weeks = 10 lbs.  Don’t diet more than that because your power on the bike and recovery off the bike will decrease.
Swimming can be done indoors or outdoors, at many fitness clubs, public pools, or YMCAs. If you do not know how to swim, adult lessons are often available at gyms or your local YMCA. Even if you learned to swim as a child, you may want to consider signing up for a class. You can learn how to more effectively work out in the pool with just a few lessons.
A computer program such as KetoCalculator may be used to help generate recipes.[47] The meals often have four components: heavy whipping cream, a protein-rich food (typically meat), a fruit or vegetable and a fat such as butter, vegetable oil, or mayonnaise. Only low-carbohydrate fruits and vegetables are allowed, which excludes bananas, potatoes, peas, and corn. Suitable fruits are divided into two groups based on the amount of carbohydrate they contain, and vegetables are similarly divided into two groups. Foods within each of these four groups may be freely substituted to allow for variation without needing to recalculate portion sizes. For example, cooked broccoli, Brussels sprouts, cauliflower, and green beans are all equivalent. Fresh, canned, or frozen foods are equivalent, but raw and cooked vegetables differ, and processed foods are an additional complication. Parents are required to be precise when measuring food quantities on an electronic scale accurate to 1 g. The child must eat the whole meal and cannot have extra portions; any snacks must be incorporated into the meal plan. A small amount of MCT oil may be used to help with constipation or to increase ketosis.[37]
This workout plan is between 4 and 12 weeks long, depending on how much weight you want to lose. Follow this workout plan and practice healthy eating and portion control, which means eating the right food in the right quantities at the right times, and you’ll be able to burn off at least a pound or two of body fat each week. But remember, you’ll also be doing resistance training to gain muscle in all the right places, so you’ll want to keep track of your progress with body measurements and, if you can, body fat percentage.
• Fighting inflammation — The human body can use both sugar and fat as fuel sources. However, the latter is preferred because it is a cleaner, healthier fuel that releases far fewer reactive oxygen species (ROS) and secondary free radicals. By eliminating sugar from your daily food consumption, you're decreasing your risk of developing chronic inflammation throughout your body.
Swimming does exercise almost the entire body—heart, lungs, and muscles—with very little joint strain. Swimming is great for general fitness and health, just not the best way to drop excess pounds. To lose body fat, you must use more calories than you eat through a combination of controlling your food intake and increasing your exercise routine—like doing more swimming.
Most condiments below range from 0.5–2 net carb grams per 1–2 tablespoon serving. Check ingredient labels to make sure added sugar is not included, which will increase net carbs. (Stevia and erythritol will become your go-to sweeteners because neither raise your blood sugar — combine for a more natural sweet taste and, remember, a little goes a long way!)

A review of multiple studies in the journal Nutrients found that ketogenic diets are connected to significant reductions in total cholesterol, increases in “good” HDL cholesterol levels, dips in triglycerides levels and decreases in “bad” LDL cholesterol; there are questions as to whether diets high in saturated fat negate these benefits. The same paper reports that a ketogenic may slightly reduce blood pressure, but science is still very scant on this point.

Most outdoor activities are pretty dreadful when you bring them inside (see: running on a treadmill). But indoor cycling apps like Zwift, Sufferfest, TrainerRoad, as well as studio cycling classes offered virtually like Peloton actually make stationary cycling fun and entertaining. That means you’re less likely to fall out of routine when the weather turns bad.