| Table 2: Acute Effects of Fat on Testosterone in Men | |||||||||||||
| Ref | # | Age | Diet | Fat | SFA | PUFA | P:S | CHO | Pro | Fiber | Calories | Time | Results | 
| years | % | % | % | ratio | % | % | g | kcals | |||||
| 14 | 8 | 23-35 | C | 0 | 0 | 0 | 0 | 0 | 0 | 0 | <1 | 4 hours | NC T & fT | 
| HF | 57.0 | NG | NG | NG | 34.0 | 9.0 | NG | 795.2 | 4 hours | DT & fT | |||
| LF | 1.2 | NG | NG | NG | 73.3 | 25.5 | NG | 797.0 | 4 hours | NC T & fT | |||
| 18 | 4 | 25.5 | N | 40.0 | NG | NG | NG | 45.0 | 15.0 | NG | ~2750/d | 3 days | NC T & fT | 
| CHO | 30.0 | NG | NG | NG | 55.0 | 15.0 | NG | ~2750/d | 3 days | NC T & fT | |||
| PF | 60.0 | NG | NG | NG | 15.0 | 25.0 | NG | ~2750/d | 3 days | NC T & fT | |||
| C = Control diet; CHO = Carbohydrate rich; DT&FT = Decreased T & fT; HF = High fat diet; | |||||||||||||
| LF = Low fat diet; NC T & fT = No significant changes in T or fT; NG = Not given; PF = Protein | |||||||||||||
| & fat rich | |||||||||||||