Breaking a Weight Loss Plateau
I know all about how annoying a low carb diet weight loss plateau can be.
In 2008, I began to change my eating habits in order to address some serious health problems. I also wanted to lose the excess weight I had accumulated over the years while eating a poor diet full of processed junk food. It took several years and I still struggle with my weight, but I have lost over 70 pounds and I'm still moving in the right direction.
The Most Common Causes of a Weight Loss Plateau
Here is my opinion, born of my individual experience, on the most common causes of a weight loss plateau. If someone is following a ketogenic diet, and not losing weight, or the weight loss is inconsistent (going down one week and up the next), here are some of the most common causes:
- Eating more carbohydrate than they think (fruit, nuts, and yogurt are the particular culprits here). I call this carb creep.
- Eating more calories than their body can handle without storing (this is usually the result of a very high fat intake - for me, too much dairy).
- Eating large amounts of low carb foods that elevate insulin. Dairy products, whey protein, sugar alcohols, and other artificial sweeteners are culprits here.
- Not exercising in a way that increases insulin sensitivity to the muscles. (The problem is that for people with a broken metabolism, long, slow exercise doesn't work well - it has to be high intensity exercise, which uses all the glycogen stored in the muscles, and makes them more insulin sensitive. This would be once or twice a week bouts of heavy weight lifting, sprints, etc. Not every day walking on a treadmill.)
In addition, these issues can also be at work, alone or in combination:
- There's a food sensitivity which is not being addressed. For instance, many people find that dairy products stall weight loss, or perhaps gluten in some form is being eaten (low carb pasta, protein bars or some other processed low carb food).
- The person has a very broken metabolism, and it will take time, and a commitment to do whatever it takes to fix the metabolic issues, especially when it comes to improving insulin sensitivity. This includes keeping the amount of carbohydrate consumed very low (I have to stay below 16 grams of carb per day to maximize weight loss), and avoiding foods and other substances which are known to spike insulin without necessarily increasing blood sugar. These include gluten, aspirin, non steroidal anti-inflammatory drugs, casein protein from dairy products and MCT oil.
- The person is not being as consistent on the program as they think they are. Consistency over time is key, because it takes about 1-2 weeks to get into ketosis. If you kick yourself out with a cheat day, it will take that long to get back into ketosis. Now, at that point, a good chunk of time has passed where no fat burning was occurring. If you are weighing yourself once a week, this can be disheartening, as that cheat day will have put 4 pounds of water back on, and it will be another 3-4 days before weight loss starts again. What seems like a weight loss plateau is really just a delay because of the time it takes to get back to ketosis.
- Accountability is lacking. Consistency, I think, is helped if you have a way to be accountable to someone, and you track your food intake and results each day to help you stay on course. I measure and track everything, (food intake, exercise, blood sugars) in a program called Fitday and on an Excel spreadsheet. If you don't do this, it is just too easy to let the carbs and calories creep up. It's a pain, but if you really want to make your weight goal, I think it's necessary to record what you are eating, and use this information to stay on plan.
- Sometimes, the body may just be adjusting itself after a period of intense weight loss. I've read in several articles that the body will replace lost fat with water, as it adjusts to weight loss. Then all of sudden, it will release the extra water, and the dieter will experience a "whoosh" in weight loss - say 5 pounds in two days.
- Protein intake may be too high. Too much excess protein, say in excess of 1.5 grams per kilogram of lean body mass, can have the same effect on blood glucose as carbohydrates, and this can be a "hidden" factor for a weight loss plateau. A higher protein intake is encouraged during the first 3-4 weeks of a ketogenic diet. But after the body becomes keto-adapted and is burning mostly ketones for fuel, protein intake should be lowered to between .8 - 1.5 grams per kilogram of lean body mass. (If you exercise a lot, you can go to the higher end of the range.) Try cutting back on protein and adding a little more fat to your diet, while staying at a calorie deficit. For more info, see my daily protein requirement page.
- Paradoxically, you may not be eating ENOUGH calories or you are exercising too much. The body slows down its metabolism in response to a lack of food or excessive amounts of exercise. Dr. Steve Phinney did a study in 1988 which showed that when people exercised more than an hour a day, their resting metabolic rate dropped by as much as 15%. There are at least two other papers which report the same outcome to a regimen of excessive exercise.This doesn't seem to fit the logic of breaking a weight loss plateau, but you could try adding 300-500 calories of fat and protein to your daily count for a few days, and see what happens. And if you are exercising hard every day, reduce the amount of time you spend exercising and give yourself permission to rest a day or two during the week.
- You may be eating too often. Try going for longer periods without eating. This "intermittent fasting" works well for some people, as it allows the blood sugar and insulin to return to baseline levels before the next meal. For instance, instead of having 5 small meals a day spaced out over 8-10 hours, have most of your calories in a 6 hour window, say from noon until 6pm, and then don't eat again until the next day at noon.
- There may be a lack of a micronutrient, especially if you aren't taking any supplements. Try taking a balanced multivitamin once a day. Have your vitamin D levels checked and bring them up if they are low.
- Finally, and this is most important, the success of losing weight and improving health is about learning new habits and sticking with them. If you decide that your new eating habits are a permanent change, it makes it easier to weather the occasional weight loss plateau. I know that I can never go back to eating my "old" way because when I do, I gain weight and my old symptoms return. After all the work I've done to fix my broken metabolism, it's just not a smart thing to do. But I will also say we can't all be smart all the time. Backslides will happen. Just take them in stride as part of the journey and do better next time. : )
If you are experiencing a weight loss plateau, just hang in there. Honestly evaluate your diet and exercise program, tweak where you can, and try to wait it out.
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