Table 9.
The frequency of Theoretical Domains Framework domains for individual themes.
| Theme | Most frequent domain | Frequency, n (%) | Least frequent domain | Frequency, n (%) |
| Weight loss (N=130) | Goals | 59 (45.4) | Memory, attention and decision processes, and emotion | 3 (2.3) |
| Cooking and recipes (N=429) | Skills | 343 (80.0) | Social and professional role and identity | 5 (1.2) |
| Immune health (N=264) | Knowledge | 200 (75.8) | Intentions | 2 (0.8) |
| Food support and food system (N=265) | Environmental context and resources | 153 (57.7) | Social influences | 5 (1.9) |
| Specific foods (N=665) | Environmental context and resources | 273 (41.1) | Social and professional role and identity, and emotion | 6 (0.9) |
| Alcohol consumption (N=105) | Environmental context and resources | 60 (57.1) | Optimism and social influences | 2 (1.9) |
| Nutrients and supplements (N=161) | Knowledge | 105 (65.2) | Social and professional role and identity, and emotion | 2 (1.2) |
| Food overconsumption (N=83) | Environmental context and resources | 55 (66.3) | Social and professional role and identity | 1 (1.2) |
| Food tips and recommendations (N=361) | Skills | 258 (71.5) | Intentions | 8 (2.2) |
| Food changes (N=322) | Environmental context and resources | 232 (72.1) | Social and professional role and identity | 9 (2.8) |
| Body appearance (N=153) | Environmental context and resources | 69 (45.1) | Social and professional role and identity | 3 (2.0) |
| Diets and dietary patterns (N=533) | Environmental context and resources | 326 (61.2) | Social and professional role and identity, and memory, attention, and decision processes | 4 (0.8) |
| Other lifestyle habits (N=712) | Behavioral regulation | 389 (54.6) | Social and professional role and identity | 15 (2.1) |
| Grocery (N=339) | Skills | 205 (60.5) | Social influences | 7 (2.1) |
| Health care system (N=232) | Knowledge | 101 (43.5) | Social influences | 4 (1.7) |