Calories?
Some people will claim to know with great authority. But 99% of the papers published by the experts who have been in the field for years state that noone really knows.
They can APPROXIMATE - but even that is somewhat of a guess and will vary depending on what TYPE of calorie you are consuming. Different calorie TYPES, carbs, fats, protein, etc are absorbed the best in different PLACES in our intestines - some of which have been bypassed, some of which have not. (I hope I worded that right - it's late. LOL)
The best way, in my opinion, to know how many calories you need to be consuming is to invest in a MedGem test. They are EXTREMELY accurate when administered by a professional. Many gyms have RDs on staff that will administer them. A fellow RNYer and myself drove over an hour to get to a gym to have one administered by a RD who has worked with post-op WLS patients for YEARS. It was a flat $100 and came with a 1 hour nutrition consult. It was money well spent and really put my mind at ease about what I was doing/consuming.
Keep in mind that most of the macronutritient malabsorbtion associated with RNY is compensated for at 3 years post-op. (This is not true of micronutrient absorption which is why we have to take vitamins for the rest of our lives.) So at 3 years post-op, you are probably absorbing most of the calories you take in. (This according the 2008 article on Bariatric Nutrition posted on the Am Soc of Metabolic / Bariatric Surg website.)
They can APPROXIMATE - but even that is somewhat of a guess and will vary depending on what TYPE of calorie you are consuming. Different calorie TYPES, carbs, fats, protein, etc are absorbed the best in different PLACES in our intestines - some of which have been bypassed, some of which have not. (I hope I worded that right - it's late. LOL)
The best way, in my opinion, to know how many calories you need to be consuming is to invest in a MedGem test. They are EXTREMELY accurate when administered by a professional. Many gyms have RDs on staff that will administer them. A fellow RNYer and myself drove over an hour to get to a gym to have one administered by a RD who has worked with post-op WLS patients for YEARS. It was a flat $100 and came with a 1 hour nutrition consult. It was money well spent and really put my mind at ease about what I was doing/consuming.
Keep in mind that most of the macronutritient malabsorbtion associated with RNY is compensated for at 3 years post-op. (This is not true of micronutrient absorption which is why we have to take vitamins for the rest of our lives.) So at 3 years post-op, you are probably absorbing most of the calories you take in. (This according the 2008 article on Bariatric Nutrition posted on the Am Soc of Metabolic / Bariatric Surg website.)
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uwe0306 · 2 replies · 138 views
uwe0306 · 2 replies · 138 views
