TABLE 2.
Dietary characteristics of the study treatments on days 1–61
| NP-PLANT | NP-BEEF | HP-BEEF | |
|---|---|---|---|
| Breakfast | |||
| Energy content, kcal | 354 ± 0 | 350 ± 0 | 350 ± 0 |
| Energy density, kcal/100 g | 136 ± 8 | 140 ± 17 | 140 ± 6 |
| Total protein, g | 13 ± 0 | 14 ± 0 | 35 ± 0 |
| Beef, g | 0 ± 0 | 9 ± 0 | 27 ± 0 |
| Carbohydrate, g | 48 ± 0 | 48 ± 0 | 36 ± 0 |
| Fat, g | 12 ± 0 | 12 ± 0 | 9 ± 0 |
| Lunch | |||
| Energy content, kcal | 340 ± 0 | 340 ± 0 | 360 ± 0 |
| Energy density, kcal/100 g | 171 ± 18 | 173 ± 25 | 160 ± 14 |
| Total protein, g | 13 ± 0 | 13 ± 0 | 35 ± 0 |
| Beef, g | 0 ± 0 | 7 ± 0 | 22 ± 0 |
| Carbohydrate, g | 48 ± 0 | 48 ± 0 | 35 ± 0 |
| Fat, g | 12 ± 0 | 12 ± 0 | 8 ± 0 |
| Dinner | |||
| Energy content, kcal | 340 ± 0 | 330 ± 0 | 360 ± 0 |
| Energy density, kcal/100 g | 149 ± 22 | 133 ± 14 | 145 ± 9 |
| Total protein, g | 13 ± 0 | 13 ± 0 | 35 ± 0 |
| Beef, g | 0 ± 0 | 7 ± 0 | 30 ± 0 |
| Carbohydrate, g | 48 ± 0 | 48 ± 0 | 34 ± 0 |
| Fat, g | 12 ± 0 | 12 ± 0 | 10 ± 0 |
| Evening snack | |||
| Energy content, kcal | 200 ± 0 | 210 ± 0 | 210 ± 10 |
| Energy density, kcal/100 g | 165 ± 3 | 189 ± 36 | 147 ± 6 |
| Total protein, g | 8 ± 0 | 8 ± 0 | 19 ± 0 |
| Beef, g | 0 ± 0 | 4 ± 0 | 16 ± 0 |
| Carbohydrate, g | 28 ± 0 | 28 ± 0 | 20 ± 0 |
| Fat, g | 7 ± 0 | 7 ± 0 | 6 ± 0 |
| Daily intake | |||
| Energy content, kcal | 1220 ± 0 | 1240 ± 0 | 1280 ± 10 |
| Energy density, kcal/100 g | 148 ± 9 | 144 ± 5 | 146 ± 7 |
| Total protein, g | 47 ± 0 | 48 ± 0 | 124 ± 0 |
| Beef, g | 0 ± 0 | 27 ± 0 | 95 ± 0 |
| Carbohydrate, g | 171 ± 0 | 172 ± 0 | 125 ± 0 |
| Fat, g | 42 ± 0 | 43 ± 0 | 33 ± 0 |
| Diet palatability, mm (rating category) | 58 ± 3a (slight like) | 72 ± 3b (slight like) | 69 ± 4b (slight like) |
1
Values are means ± SEMs, n = 17. Labeled means in a row without a common superscript letter differ, P < 0.0125. HP-BEEF, higher-protein beef diet (60% of protein from beef and 40% from plant sources); NP-BEEF, normal-protein diet (60% of protein from beef and 40% from plant sources); NP-PLANT, normal-protein plant diet (100% of protein from plant sources).