Table 1.
Intervention diets
| Vegetarian | Meat | ½ Meat/½ Fish | Fish | |
|---|---|---|---|---|
| n | 4 | 14 | 14 | 14 |
| Energya | 9 | 9 | 9 | 9 |
| Proteinb | 77 (14%) | 123 (23%) | 117 (22%) | 111 (20%) |
| Carbohydratesb | 321 (59%) | 256 (48%) | 254 (47%) | 253 (47%) |
| Fatb | 79 (31%) | 79 (32%) | 85 (34%) | 91 (36%) |
| SFAb | 33 (12%) | 38 (16%) | 37 (15%) | 35 (14%) |
| MUFAb | 23 (9%) | 25 (11%) | 28 (12%) | 31 (12%) |
| PUFAb | 14 (6%) | 6 (2%) | 10 (4%) | 14 (6%) |
| n-3 PUFAb | n/dc | 1 (0.4%) | 4 (2%) | 8 (3%) |
| n-6 PUFAb | n/dc | 5 (2%) | 5 (2%) | 5 (2%) |
| Intervention diet (male volunteers; raw weight) | ||||
|
Day 1 and 3 Lunch |
– | Roast beef (113 g)e |
Mackereld (50 g); Roast beef (56 g) |
Mackereld (100 g) |
|
Day 1 and 3 Dinner |
– | Mince beef (213 g) |
Salmon (138 g); Mince beef (106 g) |
Salmon (275 g) |
|
Day 2 Lunch |
– | Mince beef (113 g) |
Herringd (50 g); Roast beef (56 g) |
Herringd (100 g) |
|
Day 2 Dinner |
– | Roast beef (213 g)e |
Trout (138 g); Mince beef (106 g) |
Trout (275 g) |
| Isotope ratiof (mean ± S.E.), ‰ | ||||
| δ13C | −25.7 ± 0.1 | −26.1 ± 0.2 | −25.4‡ | −24.7 ± 0.3 |
| δ15N | 3.8 ± 1.1 | 6.5 ± 0.1 | 7.4‡ | 8.3 ± 0.3 |
SFA saturated fatty acids, MUFA monounsaturated fatty acids, PUFA polyunsaturated fatty acids
aIn MJ/d, b in g/d (contribution to total energy in parentheses), c not determined, d from tin, rinsed, no brine, e cooked weight, f analysed from duplicate diets, ‡ Calculated as 1:1 mixture of meat and fish diet