PC-O 42:4—a biomarker for visceral adiposity

1. A method of diagnosing the effect of a change in lifestyle on visceral adiposity in a subject, comprising

determining a level of PC-O 42:4 in a body fluid sample previously obtained from a subject to be tested after the change in lifestyle, and

comparing the subject's PC-O 42:4 level to a predetermined reference value,

wherein the predetermined reference value is based on a PC-O 42:4 level in the same body fluid obtained from the same subject prior to the change in lifestyle, and

wherein an increased PC-O 42:4 level in the sample compared to the predetermined reference value indicates a positive effect of the change in lifestyle on visceral adiposity.

2. The method according to claim 1 , wherein the change in lifestyle is a change in diet of the subject.

3. The method according to claim 2 , wherein the change in diet is at least one nutritional product that was previously not consumed or consumed in different amounts.

4. The method in accordance with claim 2 , to test the effectiveness of a new nutritional regiment.

5. A method for diagnosing the effect of a change in diet on visceral adiposity in a subject, comprising

determining the level of PC-O 42:4 in a body fluid sample previously obtained from a subject to be tested after the change in diet, and

comparing the subject's PC-O 42:4 level to a predetermined reference value,

wherein the predetermined reference value is based on a PC-O 42:4 level in the same body fluid obtained from the same subject prior to the change in diet, and

wherein an increased PC-O 42:4 level in the sample compared to the predetermined reference value indicates a positive effect of diet change on visceral adiposity.

6. The method according to claim 5 , wherein the change in diet is at least one nutritional product that was previously not consumed or consumed in different amounts.

7. The method according to claim 5 , wherein the method serves to detect the effectiveness of a new nutritional regimen.