title: Estimating Serving Sizes for Healthier and Unhealthier Versions of Food According to Canada's Food Guide.
abstract: OBJECTIVE
  Canada's Food Guide (CFG) defines food serving sizes and recommends a specific number of servings from each of the 4 food groups. However, there is no differentiation in serving sizes for different versions of foods that may differ in nutritional value.
  
  
  METHODS
  Participants (n = 20) estimated serving sizes of "healthier" and "unhealthier" versions of milk, bread, cereal, potatoes, chicken, fish, and juice and reported the amount normally consumed in 1 sitting.
  
  
  RESULTS
  Participants estimated unhealthier servings of cereal and juice to be smaller than healthier servings, but estimated unhealthier servings of chicken to be larger than healthier versions (P < 0.05). There were no differences for bread, milk, potatoes, and fish. Accordingly, estimated servings of juice (P < 0.01) had more calories than the unhealthier orange drink. There were no caloric differences for cereal (P = 0.12), but an estimated serving of bran flakes had more fat and fibre than frosted flakes cereal.
  
  
  CONCLUSIONS
  In contrast with CFG, which does not account for different versions of food, certain unhealthier foods were estimated to be smaller or larger than the healthier versions. However, both healthy and unhealthy serving sizes still tended to be larger than what is prescribed in CFG. Thus, better education or revision of serving sizes in future editions of CFG may warrant consideration.
authors.affiliation: a School of Kinesiology and Health Science, York University, Toronto, ON.
authors.forename: Sina
authors.initials: S
authors.lastname: Parikh
authors.affiliation: a School of Kinesiology and Health Science, York University, Toronto, ON.
authors.forename: Mazen J
authors.initials: MJ
authors.lastname: Hamadeh
authors.affiliation: a School of Kinesiology and Health Science, York University, Toronto, ON.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Kuk
mesh_terms: D000293:Adolescent; D000328:Adult; D002170:Canada; D003611:Dairy Products; D004041:Dietary Fats / Q000008:administration & dosage / Q000032:analysis; D004043:Dietary Fiber / Q000008:administration & dosage / Q000032:analysis; D002523:Edible Grain; D002149:Energy Intake; D005247:Feeding Behavior; D005260:Female; D063427:Food Quality; D005638:Fruit; D006801:Humans; D008297:Male; D062407:Meals; D018673:Nutrition Policy; D064427:Nutritive Sweeteners / Q000008:administration & dosage / Q000032:analysis; D009753:Nutritive Value; D064788:Serving Size; D014675:Vegetables; D055815:Young Adult
chemical_list: D004041:Dietary Fats; D004043:Dietary Fiber; D064427:Nutritive Sweeteners