Publications by authors named "Madeline Comeau"

Background: The "clean eating" trend suggests that consuming fewer processed foods is important for healthy diets. Yet, a diet of mostly ultra-processed foods (UPFs) can meet recommendations from the Dietary Guidelines for Americans. Whether a diet comprised mostly of simple ingredient foods can provide a low-quality diet remains unexplored.

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Background: The 2020-2025 Dietary Guidelines for Americans (DGA) includes a lacto-ovo vegetarian pattern (the healthy vegetarian dietary pattern [HVDP]) as a recommended dietary pattern during pregnancy.

Objective: To adapt the HVDP for vegan, ovo-vegetarian, lacto-vegetarian, and pescatarian diets during pregnancy.

Design: Using food pattern modeling, 4 adaptations of the HVDP were developed at energy levels that may be appropriate during pregnancy (1800, 2000, 2200, 2400, and 2600 kcal/day).

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Iodine insufficiencies are common among many populations, particularly pregnant women. One of the main functions of iodine is making thyroid hormone. The 2 main hormones that iodine influences are triiodothyronine and thyroxine.

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Background: Among its recommended dietary patterns for Americans, including lactating mothers, the 2020 Dietary Guidelines for Americans (DGA) includes a Healthy Vegetarian Dietary Pattern (HVDP). However, the DGA does not provide guidance for adapting the HVDP for vegetarians who avoid dairy (ovo-vegetarian) or eggs (lacto-vegetarian), eat fish (pescatarians), or avoid all animal foods (vegan).

Objective: To determine whether models of the HVDP for different vegetarian diets could provide sufficient nutrition during lactation, a life stage with unique nutrient needs.

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Background: A proposed topic for the 2025 Dietary Guidelines for Americans (DGA) Scientific Advisory Committee to address is the relationship between dietary patterns with ultra-processed foods (UPF) and body composition and weight status. Implementing the NOVA system, the most commonly applied framework for determining whether a food is "ultra-processed," in dietary guidance could omit several nutrient-dense foods from recommended healthy diets in the DGA.

Objective: The purpose of this proof-of-concept study was to determine the feasibility of building a menu that aligns with recommendations for a healthy dietary pattern from the 2020 DGA and includes ≥80% kcal from UPF as defined by NOVA.

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Introduction: The 2020-2025 Dietary Guidelines for Americans (DGA) includes a Healthy Vegetarian Dietary Pattern (HVDP) with dairy foods and eggs as one of its three recommended dietary patterns for non-pregnant, non-lactating healthy adults. This study evaluates whether pescatarian, lacto-vegetarian, and "pescavegan" adaptations of the HVDP can be nutritionally adequate if modeled with foods recommended by the DGA.

Methods: The nutrient composition of these three alternative models of the HVDP were assessed at 1, 800-, 2, 000-, 2, 200-, and 2,400- kcal/day using similar food pattern modeling procedures as the 2020 DGA.

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The 2020 Dietary Guidelines for Americans (DGA) recommends a Healthy Vegetarian Dietary Pattern (HVDP) but does not provide guidance for dairy-free vegetarian (ovo-vegetarian) or vegan diets. A recent study from our lab modeled ovo-vegetarian and vegan HVDPs for healthy adults and found minimal impacts on nutrient content. However, since these models provide only recommendations for food group amounts, the objective of this study was to determine the feasibility of implementing the 2000 kcal ovo-vegetarian and vegan models by developing sample menus and evaluating them for nutrient adequacy and diet quality.

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