| No. | Name of Lifestyle | Third Class | Second Class | First Class | Type | No. of Studies |
|---|---|---|---|---|---|---|
| 1 | Methionine > 2.6g/day+ MTHFR polymorphism A1298C carriers | NA | Biochemical+Gene | Joint effect | No statistical significance factor | 1 |
| 2 | Methionine > 2.6g/day+ MTHFR polymorphism C677T carriers | NA | Biochemical+Gene | Joint effect | No statistical significance factor | 1 |