Metabolic control, satiety and diet across the lifespan
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Note that this presentation is free of charge and accessible to both CNS members and non-members.
By the end of the webinar, participants will:
- Better understand the functional role of whole foods in metabolic control across different age groups.
- Learn more about the effects of protein, including dairy proteins, on the regulation of appetite, satiety, and postprandial glycemia across the lifespan.
- Gain insight on the dietary patterns, protein sources, and nutrient quality of the diets of Canadians in different age groups.
Key topics addressed:
- The role of whole foods, such as dairy, and protein in the regulation of metabolism and food intake.
- Why dairy proteins are unique in the regulation of post-prandial glycemia, satiety, and appetite.
- The importance of meal-time food combinations in control of post-prandial glycemia and satiety.
- Metabolic requirements through the lifespan.
- The intakes of different food groups in Canadians across different age groups (children, adults, elderly).
- The distribution of different protein sources (animal vs plant-based) and the impact on dietary nutrient quality.
- Glycemic control and metabolic health are largely driven by habitual diets, meal combinations and food composition.
- Dairy foods combined with high glycemic foods lowered glycemic response in young adults (20-30y) and older adults (60-70y), compared with water or non-dairy foods.1,2,3
- Whole foods (with their natural food matrices), such as dairy and pulses, are preferred meal-time components.
- Protein is the primary regulator of metabolic responses and satiety.4
- Protein in meals is key to controlling post-prandial glycemia and satiety.
- The increased protein requirements with aging may be explained by metabolic rigidity.
- Protein intake drops when plant protein represents 75% or more total daily protein intake, highlighting concerns for diet quality and protein adequacy in the elderly.5
- Dairy is a familiar source of high-quality functional proteins and micronutrients.
- The physiologic functionality of dairy goes beyond its nutrient value and accounts for many positive outcomes associated with its consumption, including improved glucose metabolism and appetite suppression.
- Dietary guidance on dairy needs to move beyond “Protein Quality”.
- Importance of consumption of whole food protein sources with meals should be included in Canada’s Healthy Eating Strategy.
1. Law M et al. The effect of dairy and nondairy beverages consumed with high glycemic cereal on subjective appetite, food intake, and postprandial glycemia in young adults. Applied Physiology, Nutrition, and Metabolism 2017;42:1201-1209.
2. Law M et al. The effect of dairy products consumed with high glycemic carbohydrate on subjective appetite, food intake, and postprandial glycemia in older adults. Applied Physiology, Nutrition, and Metabolism 2017;42:1210-1216.
3. Vien S et al. Age and sex interact to determine the effects of commonly consumed dairy products on postmeal glycemia, satiety, and later meal food intake in adults. The Journal of Nutrition 2021;151:2161-2174.
4. Luhovyy BL and Kathirvel P. Food proteins in the regulation of blood glucose control. Advances in Food and Nutrition Research 2022;102:181-231. Doi: 10.1016/bs.afnr.2022.05.001.
5. Fabek H et al. An examination of contributions of animal-and plant-based dietary patterns on the nutrient quality of diets of adult Canadians. Applied Physiology, Nutrition, and Metabolism 2021;46:877-886.Doi: 10.1139/apnm-2020-1039.