This app is designed for use by people familiar with the ketogenic diet (please go to to learn more). It complements other nutrition or fitness apps - it is not a general nutrition app but only includes a calculator which determines the level of ketosis similar to keto sticks or blood tests. But urine ketosticks are known to yield notoriously inaccurate results. Tools like ketosticks, blood tests or breath ketone analyzers only allow you to see if your food was ketogenic AFTER your meals, while KetoCalc lets you accurately PRE-PLAN ketogenic meals per meal or on a daily basis.

Playing with KetoCalc a few times is the best way to learn what a real ketogenic meal looks like - at a one time cost less than that of a box of ketostix.

Other ketogenic ratio calculators use an inaccurate formula which adds protein and carbs together in a ratio against fat, but carbs and protein do not contribute equally to the degree of anti-ketosis. This popular and simplified formula can result in underestimating the amount of protein needed to maintain muscle mass for a given ketogenic ratio. But KetoCalc is based on a well researched formula developed by Dr. Rollin T. Woodyatt. We have confirmed the accuracy of his formula with spreadsheets, and blogs contain ketogenic diet success stories mentioning the KETOCALC app (, affirming how well blood and breath ketone levels correlate with the ketogenic ratio that the app yields.

Instructions on using KetoCalc are found in the app’s menu. These simple instructions eliminate the room for failure through a 4 step process which does not only ensure ketosis but also ensures that one avoids the three pitfalls of weight loss on a ketogenic diet (in the case weight loss is desired and not only ketosis for its therapeutic benefits).


1 - Remain In Ketosis Even If You Slip
Few people know that even if one eats too many carbohydrates at a meal, it is still possible to maintain ketosis if one eats a larger amount of fat. This may add up to too many calories to let one lose weight for that day (too many calories from even low carb sources can prevent weight loss), however, one may retain the health benefits of maintaining ketosis. By remaining in ketosis, one can also start losing weight again sooner as one maintains the body’s fat burning adaptation. Otherwise, even going out of ketosis occasionally, according to researcher Dr. Stephen Phinney, requires another three week adaptation period. In addition to helping one remain in ketosis, our calculator also gives the total number of calories from one’s meals so one can adjust the amount of macronutrients to both maintain ketosis and a desired calorie level optimal for weight loss (if weight loss is desired).

2 - Avoid the 3 Pitfalls of Weight Loss on a Low Carb Diet
Many people who use low carb diets to lose weight have found that after a period on what they thought was a ketogenic diet, they stalled or even re-gained weight. As you use KetoCalc, following our simple 4 step process explained in the instructions ensures that you avoid the following three pitfalls which can prevent weight loss:

- Too much protein even from low carb sources
- Too many calories even from low carb sources
- Too little fat which prevents ketosis

The app works totally offline, works very fast due to its native programming language and includes no advertisements or irritating pop-ups.

If you have any further questions or suggestions, please email us ( and we will respond promptly.


Mar 24, 2017


Recently, with the increase of interest in ketogenic diets, a lot of research has been conducted demonstrating a wide range of health benefits from ketogenic diets. Remaining in ketosis is particularly effective at improving neurological function which was first tested in the 1920’s by Dr. Rollin Woodyatt. Dr. Woodyatt, who treated epileptic patients, owes his success to a formula he devised which yields a ketogenic ratio. His accurate formula allowed him to pre-plan the meals of his patients to ensure that their diet remained ketogenic. The ketogenic ratio that Woodyatt yields is still being used today with great results to ensure that a person stays in ketosis by letting them plan ahead. A modern-day ketogenic diet success story posted online mentions the KETOCALC app which yields Woodyatt's ratio, affirming how well actual blood and breath ketone levels correlate with this ratio. The following explains what Woodyatt's formula does and why it yields such accurate results.

How ketogenic a diet is depends on the ratio of macronutrients, that is carbohydrates, protein, and fat. Each of these macronutrients makes a different contribution to the degree of ketosis present in the diet. The more ketogenic a diet is, the more it utilizes the burning of fat for metabolism rather than glucose.

The KETOCALC app does not use the most popular ketogenic ratio formula which is seriously flawed. This simplified faulty approach adds protein and carbs together in a ratio against fat, wrongfully assuming that protein is equally anti ketogenic as carbohydrate. With this inaccurate formula you can easily underestimate the amount of protein needed to maintain muscle mass for a given ketogenic ratio. According to the research of Dr. Woodyatt, each of the macro nutrients contributes to the following degree to the amount of ketosis.

Carbohydrate: 0.0 ketogenic and 100% non ketogenic.

Protein: .79 ketogenic and .21 non ketogenic, meaning 21% of protein has the same non-ketogenic effect of carbohydrate.

Fat: .90 ketogenic and .10 non ketogenic, menaing 10% of fat has the same non-ketogenic effect of carbohydrate.

The other consideration is that if your goal is weight loss, even though you burn fat on a ketogenic diet, you won't be losing weight if your dietary fat intake is more than you can burn. KETOCALC lets you avoid this pitfall by also yielding your total number of calories as well as the percentage of calories form each macronutrient.

The beauty of this, to sum up, is that you can keep adjusting your macros as you pre-plan your meal to be as ketogenic as you want at the ideal caloric intake to guarantee weight loss.

May 20, 2016


I was thinking the other night about the flexibility in using the keto ratio calculator when someone slips out of ketosis and has that piece of wedding cake. Then I was faced with the same problem. I wanted to eat more yogurt but it had 15 grams of carbs. Now I have been mostly ketogenic for many months, losing weight from 275 lbs to my current weight of 165 lbs. According to Drs Volek and Phinney, world renown experts on nutritional ketosis, there is an adaptation period during which your body is switching over from burning sugar to burning fat . If after you are adapted you go out of ketosis your body requires a period  of ketogenic eating before you are again adapted. 

So I put my macros in the calculator. The yogurt had 14 grams of fat, 15 grams of carbohydrate, and 9 grams of protein, and I added 25 grams of whey bringing the total protein up to 34. That gave me a keto ratio well below 1 which is not ketogenic. So I added 5 tablespoons of extra virgin olive oil, which now gave 67 more grams of fat for a total fat content of 80 grams and entered these amounts. This was now very ketogenic with a ratio of 2.05.

I just entered my protein, carbohydrate , and fat grams into the calculator (all on the yogurt container). Then I kept increasing the fat amount in the calculator until the ratio was over 2. That’s how much additional fat or oil was needed for the diet to be ketogenic.

So get out your diet guide and get the protein, carbohydrate, and fat for your wedding cake, enter the protein and carbs, and keep upping the fat entry until you’re keto.

Nov 10, 2014


Hormesis is the term for generally favorable biological responses to low exposures to toxins and other stressors. A stimuli or toxin showing hormesis has an opposite, and beneficial effect in small doses where it would be damaging in larger doses. An example of this would be weight training. The muscles are broken down to allow the body to adapt and ultimately build them stronger than before.

With the ketogenic diet the body eventually reaches a state of homeostasis. Even if the diet is ketogenic, and the calories are below the maintenance level many people find they do not lose all of the weight they desire. This is because the metabolic rate has slowed down to accommodate the ketogenic state. What can overcome this is to briefly spike the body with an insulin spike by consuming extra carbohydrates at one meal. There are several cautions that need to be followed when doing this.

If the conditions are right then the person should, at one meal only, add a large amount of easily digested, relatively tasteless, carbohydrates such as white rice. They should have a large portion eating at least 100 grams of carbohydrate at the one meal. The one meal should be the evening meal. After the spike they should return to a strict ketogenic diet with 20 grams of carbohydrate a day or less.

This sudden spike in blood sugar and insulin will have a hormetic effect causing the body when it returns to the default ketogenic state to burn more fat. This is a technique which is well researched and is similar to methods used by bodybuilders to reach very low levels of body fat. It is important to do this only as often as once a week or less. When the body returns to a steady ketogenic state it should settle down to a weight lower than before the spike. Only then should another spike be considered. These brief spikes should not be enough to lose keto adaptation. 

If a person has blood sugar problems or is diabetic this might not be advisable. If a person has a strong carbohydrate addiction they need to be careful that they don’t return to eating a higher carb diet. Most people don not have a return of carbohydrate craving after this spike but obviously if you do then it’s not for you. Most importantly a person needs to be well keto adapted, having been on a ketogenic diet for 4 to 6 weeks.

Sep 12, 2014


In episode 863 , Jimmy Moore on the Livin La Vida Low-Carb podcast had Dr. Ron Rosedale as a guest. Dr. Rosedale has been on the leading edge of the low carb ketogenic approach to health for many decades. An interesting point he brought up during this interview was that one could reach ketosis on a high protein diet with very few carbs and low fat. The problem with this is it’s not healthy. That’s why it’s important to achieve ketosis through a high fat moderate protein low carb diet. One cannot go wrong however if one uses the keto ratio calculator as the unhealthy approach would not show the ratio as being ketogenic, as Dr. Woodyatt specifically developed this ratio to show the appropriate way of achieving healthy ketosis. Well worth listening to this podcast.

Nov 29, 2012


Epigenesis is the effect of the environment on which genes express.

The genes that express are a function of our diet and other environmental influences. In our diet they are affected by three hormones. Insulin controls the glucose level in the blood. Leptin responds to the amount of fat on our body, and Mtor responds to the amount of protein in the diet.

Natural selection is designed to select those individuals who survive to pass on the information in the genes through reproduction. Once reproduction and raising children are complete, there is no selective advantage to living longer. In humans there are two main sets of genetic expression which result from conditions of food abundance in the environment.

The first environment condition is in times of abundance when there is plenty of carbohydrate and/or protein available. The genes selected during this period favor immediate reproduction as the offspring have the best chances of survival. After reproduction there is no secretive advantage to the parent living much longer past child rearing.

The second environmental condition occurs in times of scarcity when carbohydrate is unavailable and protein is merely at a survival level. Nature then selects the genetic expression which favors repair, maintenance, and living longer, so that reproduction can take place in the future when conditions are more favorable.

Realizing this epigenetic principle allows modern man to adjust his diet to favor longevity and health. This has been well researched by Dr. Ron Rosedale and consists of a diet with very low carbs and very moderate protein (about 1 gram per kg of lean body mass). Studies by Dr. Rosedale and others have indicated that the bio markers of one following this way of eating match the bio markers of people living over 100 years. In the centenarians they just inherited that genetic expression, while eating a low carb ketogenic diet can actually result in expressions of the same genes. Research shows we now have a choice to live healthy and long lives.

May 3, 2012


Several studies were conducted showing reasons why a very low carb ketogenic diet with adequate but not excess protein facilitates the genetic expression which favors longevity and health. To understand this process it is necessary to look at the deeper mechanics which lead to health and longevity. For many years scientists have known that the hormone leptin has a strong effect on obesity. Drug companies tried to capitalize on this but found they could not just give an injection of leptin and produce weight loss. Leptin works in the body as a feedback mechanism and has to be sensitive to the intake of nutrients to regulate appetite.

No diet will work if the person is hungry. Almost all obese people actually have excess leptin. These people are leptin resistant. Leptin and insulin are the most important biochemicals in the body when it comes to health and longevity. These hormones are controlled by what one eats. Leptin is a powerful hormone which is produced by fat cells. Modern scientists realize that fat is not just inert tissue but is actually an endocrine organ like the pancreas and pituitary, influencing the body and particularly the brain. Leptin is a powerful regulator which tells the brain what to do about life’s two main biological goals: eating and reproducing.  It takes lots of fuel to make babies. Your fat, by way of leptin, provides feedback to your brain telling you whether you should be hungry, eat and make more fat. It (along with insulin) tells the brain whether the time is nutritionally ripe to make babies, or whether the body should work to maintain and repair itself to reproduce at a future when more energy is available. It is a biological intelligence system; your fat by way of leptin actually controls your brain.

Leptin is one way this intelligence is transmitted to the brain. This now starts to show the evolutionary advantage to becoming leptin sensitive. It not only takes lots of energy to make babies, it takes a lot of energy to keep you healthy. It is clear from recent research that by controlling leptin and insulin one can increase the genetic expression which favors health and longevity. In evolution by natural selection, the body developed these two major ways of dealing with nutrition one by using sugar and the other by using fat as fuel. If food was plentiful, nature favored breeding. Remember that natural selection only cares that the genes express which favor future reproduction. After reproduction nature doesn't care if we live long and prosper, but only that the genetic information is passed along. This is much like the cells in our body. If individual cells die it doesn't affect the overall health of the body which goes on. In the same way creative intelligence cares only that life goes on collectively.

In times of scarcity the genes express which favor postponing the reproduction until there is more food available. It does this by increasing the repair and longevity mechanisms of the body. It has been known for decades that by calorically restricting the nutrition of an organism, its lifespan is dramatically increased. Obviously not too many people would be interested in living this way however.

Fortunately science has now shown that it’s not necessary to restrict all calories but only certain nutrients. By reducing the amount of carbohydrates as much as possible, while providing adequate but not excessive protein and high healthy oil as needed to meet caloric needs the body begins to down regulate the markers of aging and disease. This was demonstrate in a study Clinical Experience of a Diet Designed to Reduce Aging

The markers which resulted were markers present in other studies of long lived people who were more than 100 years of age. The only thing these people had in common (some drank, smoked etc), was that they had these markers. They all had low fasting sugar levels, low fasting insulin levels, and low triglycerides. They also had a somewhat lower resting metabolism. Although many of these individuals inherited these markers the preceding study indicates that his can be reproduced by proper diet.

Dr. Ron Rosedale has created the specific diet which was used in the study and it can be eaten by meat eaters, vegetarian, or vegans. 

Recent Research

Longevity is the most global measure of health. The approaches to diet such as the introduction of trans fats and vegetable oils (except extra virgin olive oil and coconut oil) were initially thought to be healthy and reduce heart attacks, however the promoters of these foods didn't account for the increased inflammation and cancer that seems correlated with this type of oil. Overall longevity is reduced.

Recent research by Dr. Ron Rosedale, Dr. Stephen Phinney and others have clearly indicated that a nutritional ketogenic diet which is very low in carbohydrates, including only high fiber low starch vegetables, adequate protein. Adequate protein is about 1 gram per kilogram of lean body mass. This way of eating includes a large amount of healthy fat and oils, which should comprise most of the calories in the diet.

What a diet like this does is cause the body to switch from sugar burning to fat burning, which results in numerous health benefits. It takes about 3 weeks for the body to adapt to the change in fuel. A person may experience some discomfort during this period since the body has little carbohydrates and has not yet fully adapted to fat burning. Once adapted, and during the process it’s important to not cheat or eat carbohydrates since even one meal will stop the adaptation and require going through the whole process again. But longevity and great health is worth it.

In the article "Clinical Experience of a Diet Designed to Reduce Aging" (Journal of Applied Research, vol 9, no 4, 2009 Rosedale, Westman, Konhilis,, it is stated:

“This retrospective analysis of patients from a private clinic adhering to a high-fat, low carbohydrate, adequate protein diet [the Rosedale diet] demonstrated reductions in critical metabolic mediators including insulin, leptin, glucose, triglycerides, and free T3… Patients in this study demonstrated a similar directional impact on the measured parameters when compared to studies using more established models of longevity such as caloric restriction. We may have found a way to mimic caloric restriction, at least to some extent and any extent is extraordinary. It appears that my diet can mimic the hormonal changes in T3, insulin, and leptin seen in calorie restriction studies that are instrumental to mediate the major physiological and extremely beneficial effects of calorie restriction, but without having to calorie restrict. This could more rightfully be called the perfect diet."

The protein restriction, according to Dr. Rosedale, results in reduction of specific amino acids. These amino acids are naturally lower in vegetable protein than in animal protein. Combining this with a very low carb high fat vegetable diet naturally gives the best of both worlds. If the dietary fat was limited to olive oil, which has a low level of saturated fat, the body then tends to use more of its own saturated body fat creating an even healthier profile. Dr. Rosedale’s information can be found at the following link.

The Flexi Diet shows a ketogenic diet can be eaten while being completely vegetarian or vegan.

Vegan Version of the Rosedale Diet

The Rosedale Diet has great success in improving health and more importantly, increasing longevity based on science. The Flexi Diet can show a way of eating the Rosedale diet while eating vegan with no animal products while staying within the guidelines Dr. Rosedale recommends. This is a very low carb ketogenic diet with researched health benefits.

Typical vegan version:
  • Use high quality vegetable protein, which contains no carbohydrates. The best of these proteins is the Gemma Pea Isolate. Avoid soy protein as there are reported health risks.
  • Eat as much healthy oil as needed to satiate hunger. These would include extra virgin olive oil, virgin coconut oil, and nuts or nut butters. (Peanuts are not a nut).
  • With nuts and nut butter add the protein to your daily total.
  • Avoid other vegetable oils as they are too high in omega 6. To get sufficient omega 3 the best is cod liver oil, but as that’s not vegan one could use flax oil.
  • Eat fibrous vegetables as much as desired but avoid all starchy vegetables such as potatoes. Avoid all grains and other starches, as well as all sugars, syrups etc.
  • Determine you lean body mass (formulas and calculators are on line) and eat 1 gram of protein per kilogram of lean body mass.
  • People eating this way have had great health gains in all areas of their lives.


Refined Sugar

It has previously been mentioned that sugars and excess carbohydrates trigger the hormone insulin which stimulates the appetite to cause fat storage. Refined sugar can achieve this more effectively and faster than any other carbohydrate. Refined sugar is just about the 'greatest evil'. In case you may think I am joking, you may like to consider how diabetes is the 7th leading cause of death in the United States according to the National Institute of Diabetes. If you may still think that I may be exaggerating the 'evil' nature of refined extracted sugar, you may like to consider how diabetes is the leading cause of many additional complications more than any other known disease, including kidney failure, pregnancy complications, non traumatic lower-limb amputations, cases of blindness among adults in the United States, nervous system complications, dental complications and many others, along with being the number one cause of hypertension, heart disease and stroke in the nation. Furthermore, the National Institute of Diabetes estimates that in addition to the 18.8 million people officially diagnosed with diabetes, there would be around 7 million more undiagnosed diabetes sufferers in the U.S. As one may conclude from this data, the ill health of a prosperous nation like the U.S. is mainly due to refined sugar.

Refined sugar is a very unnatural extracted substance that destroys the body's entire appetite balance by going into the bloodstream too directly and rapidly, triggering huge amounts of unnatural insulin spikes, causing people to overeat excessively. As one can see, being able to overcome 'sugar addiction' with the Flexi Diet would cause your appetite to gradually normalize more. Your energy would also gradually become more even and steady without the sugar-induced heights and crashes. These innumerable benefits and the sufficient protein and healthy oils and the abundance of fresh vegetables in the diet, as we are convinced, would guarantee optimum health. It would be the key to fastest rejuvenation for people not in perfect health.



It would be almost impossible for most overweight people to be able to complete calorie restricted diets. Many people find the hunger simply too overwhelming to put up with. As most people know only too well most overweight/sugar addicted people love to eat due to high insulin levels. Sooner or later a sugar addicted person will go off a low calorie diet.

The secret to maintaining long term weight is to not experience hunger. When one eats a ketogenic diet with a Woodyatt ration of at least 2, after about three weeks or less, one no longer experiences hunger. This is because carbohydrates trigger a sudden rise in blood sugar which is followed by a spike in insulin which then lowers the blood sugar below its previous levels causing hunger. The key to avoiding hunger, eat a ketogenic diet.

Jan 3, 2012


Problems with Insufficient Protein 

I would like to discuss the primary problem with many vegetarian diets - the tendency toward insufficient protein intake. Without enough protein our skin cannot re-generate its collagen which gives it elasticity and youthfulness. The muscle tissues also rely on protein to stay developed and firm. As one ages there is a tendency to loose muscle mass. This process is known as sarcopenia. in addition to muscle mass most other organs require sufficient protein. People who do not get sufficient protein over a long enough period usually develop signs of premature aging and very poor health. You may have noticed some vegetarians looking more wrinkled up and saggy and older than the average non-vegetarian person of the same age group. This is because it can be very hard for vegetarians to get sufficient protein. Many people find vegetarian sources of protein such as legumes and beans hard to digest, making it difficult being a vegetarian. Some people resort to animal protein, or vegan and vegetarian diets tend to degenerate into diets with a high level of carbohydrates and sugar.

In addition to premature aging and ill health, in a protein deficient vegetarian diet, the excessive carbohydrates and sugars would over-stimulate the appetite to encourage overeating and snacking. This is because simple carbs and worst of all refined sugar cause appetite spikes by triggering the insulin hormone - the hormone responsible for fat storage. Thus vegetarians who eat too many simple carbohydrates may end up overweight or even obese. In the detailed information we provide about   weight loss, it is explained that unlike simple carbohydrates, protein and good oils have appetite suppressing effects due to being slower to digest, grounding and satisfying. Thus another serious diet mistake commonly made is to deprive oneself of sufficient amounts of good oils and fats. Low fat diets usually end up defeating their purpose by their inability to satisfy the hunger stimulus, leading to failure and frustration, resulting in more weight gain.