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The |
The Great Ormond Street Diet |
This is an alternative version of the MCT diet, based on fat and energy exchanges. The child's energy requirement is derived from 30% MCT, 30% long chain fat, counted as 15g fat exchanges and 40% from other foods, counted as 100kcal exchanges.
Construction of diet
The diet is composed of four parts:
- an allowance of Liquigen so that MCT = 30% energy intake
- 15g fat exchanges = 30% energy intake (Table 4)
- 100 kcalorie exchanges = 40% energy intake (Table 4)
- free foods (Table 1).
The diluted Liquigen can be flavoured with artificial sweetener, coffee, tea, low calorie squash, spices (e.g. cinnamon), flavouring essence (e.g. vanilla) or an allowance of skimmed milk can be calculated. Fat present in the calorie exchanges is not counted as part of the fat allowance. An example of this type of diet is shown in Table 6
Table 6 Great Ormond Street ketogenic diet
| Estimated energy requirement - 1500 kcalories | |
| 55g MCT = 110 ml Liquigen (diluted to 220 ml with water) | = 457 kcal |
| 3 5 x 15g fat exchanges | = 473kcal |
| 6 x 100 kcal calorie exchanges | = 600 kcal |
| Total | = 1530kcal |
| Breakfast | 40 ml Liquigen drink 1 calorie exchange 1 fat exchange |
- 30g breakfast cereal - 60 ml single cream |
| Mid AM | 40 ml Liquigen drink | |
| Lunch | 40 ml Liquigen drink 2 calorie exchanges 1 fat exchange free vegetables |
- 50g chicken - 115g jacket potato - 20g butter for potato - cauliflower |
| Mid PM | 40ml Liquigen drink | |
| Tea | 40 ml Liquigen drink 2 calorie exchanges 1 fat exchange free vegetables |
-155g baked beans 20g crisps - 2 eggs, scrambled - tomatoes and mushrooms |
| Bedtime | 20ml Liquigen drink 1 calorie exchange 1/2 fat exchange |
- 25g bread - 60g banana -10 9 butter |
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(update 1.1: