Table 2.

Definition of the family food environment domain, dimension, factor, sub-factor within the Family Dynamics Framework (FDF).

Family food environment domain: essential intermediary between external and internal food environment that captures how the structures (external food environments, rules, and rituals) bound and expand agency intersection to affect the food choices of the personal food environment.

Dimension	Factor	Sub-factor
Resources: Pooled materials and resources related to food acquisition and preparation that affect food choices	Social capital: Social network, support, and trust that bond, bridge, and link PLHIV and their family with a network (neighbors, extended family, work) and affects preferred food allocation toward a PLHIV
	Resource allocation: How households pool, divide and distribute food quantity and quality
	Household wealth: Financial capital and assets available within a household
	Time use: Time lost when PLHIV no longer participates in labor and household chores as well as the time that a family member spends on caring for the PLHIV
Characteristics: Composition that affects resources and decision-making regarding food preferences and how these factors affect PLHIV and family member's food choices and consumption patterns	Composition: Family members of different ages, generations, and genders residing in the same complex, whether under the same roof, within a shared compound, or in adjacent dwellings, influencing the dynamic of food choice	Generations: How multigenerational, extended, female- or male-headed households and children impacted food choices
		Gender: Social roles ascribed to men and women impact food choice
		Aging: Increased health risks and additional support that PLHIV need later in life
	Household Health Status: Disease navigation or how the family and PLHIV make food decisions	Co-morbidities: Co-occurring morbidities besides their HIV diagnosis that require additional care and a tailored diet
		Chronic diseases: Morbidities among other family members
	Household Size: Number of family members affecting the food choices of the PLHIV and household members
Action orientation: Strategies and observable acts affecting food allocation decisions and diets of PLHIV	Support: Family factors that enable food choices of PLHIV and their family members
	Value negotiations: Factors that compete with individual preferences within the family	Competing basic needs: Prioritizing one family member over another when household resources are scarce, thereby impacting the well-being of family members
		Family desirability: Balancing all family food preferences and needs while accounting for norms related to religion, ethnicity, culture, or region
Health Context: How the FDF fits within the chronic disease of focus	Impact on livelihoods: Lost income due to disease management of an individual with a chronic disease and their family members
	Healthcare: Burden associated with disease treatment, including hidden costs such as clinic transportation, waiting time, and testing, and how these healthcare burdens impact food choices
	Community support: Structural networks, hospital, and organized community groups an individual with a chronic disease can rely on to support their food choices
	Acceptance: How the household's awareness of the chronic disease status and their demonstration of acceptance through the levels of support they provide
	Nutritional awareness: How the family domain worked to optimize the personal food environment by enabling healthier food choices for an individual with a chronic disease when family members are aware of the person's nutritional needs