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Interruption of scheduled, automatic feeding and reduction of excess energy intake in toddlers

Authors Ciampolini M, Brenna JT, Giannellini V, Bini S

Received 5 November 2012

Accepted for publication 17 December 2012

Published 31 January 2013 Volume 2013:6 Pages 39—47

DOI https://doi.org/10.2147/IJGM.S39946

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Video abstract presented by Mario Ciampolini

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Mario Ciampolini,1 J Thomas Brenna,2 Valerio Giannellini,3 Stefania Bini1

1Preventive Gastroenterology Unit, Department of Paediatrics, Università di Firenze, Florence, Italy; 2Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA; 3Department of Pharmaceutical Sciences, Università di Firenze, Florence, Italy

Background: Childhood obesity due to the consumption of excess calories is a severe problem in developed countries. In a previous investigation on toddlers, hospital laboratory measurements showed an association of food-demand behavior with constant lower blood glucose before meals than for scheduled meals. We hypothesize that maternal scheduling of meals for toddlers results in excess energy intake compared to feeding only on demand (previously “on request”).
Objective: We tested the cross-sectional null hypothesis of no difference in energy intake between scheduled (automatic) and demanded meals (administered after evaluation) in 24 mother–toddler (21 months old at entry) pairs with chronic, nonspecific diarrhea presenting at a clinic. We tested the same hypothesis in a subset of 14 toddlers by measuring the resting (sleeping) metabolic rate 4 hours after lunch, as well as the total daily energy expenditure (TEE) in 10 toddlers.
Methods: We trained mothers to recognize meal demands (as in the previous investigation) and to provide food in response, but required no blood glucose measurements before meals. Energy intake was assessed by a 10-day food diary, resting metabolic rate (RMR) by respiratory analyses (indirect calorimetry) in 14 toddlers, and TEE by doubly labeled water in 10 toddlers. Their blood parameters, anthropometry, and number of days with diarrhea were assessed before training and 50 days after training.
Results: RMR decreased from 58.6 ± 7.8 to 49.0 ± 9.1 kcal/kg/d (P < 0.001) and TEE decreased from 80.1 ± 6.9 to 67.8 ± 10.0 kcal/kg/d (P < 0.001). Energy intake decreased from 85.7 ± 15.3 to 70.3 ± 15.8 kcal/kg/d (P < 0.001). The height Z-score increased significantly, while weight growth was normal. Toddlers entering the study over the median RMR decreased their RMR significantly more than those below the median RMR (P < 0.01).
Conclusion: Scheduled meal suspension induces meal demand frequency to increase. Demanded meals are associated with significantly lower energy intake, RMR, and TEE than scheduled meals. Feeding on demand may be an effective skill in a strategy for reducing excess energy intake in the long term and in regulating body weight in toddlers and children.

Keywords: hunger, intake, meals, energy, homeostasis, blood glucose, meal pattern, intake habit, overweight, balance, chronic diarrhea

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