Correlations in all subjects<sup>1.</sup>

1<p>Spearman's correlation coefficients (with p values). Significant (p<0.05) correlations indicated in bold.</p>2<p>DMG: Dimethylglycine.</p>3<p>Excretions expressed as ratio of urine betaine or DMG to creatinine.</p>4<p>Non high density lipoprotein cholesterol.</p>