> the participants were randomly assigned to two groups: 24 followed a vegan diet for four weeks, while 24 followed a diet particularly high in meat. This may

> the participants were randomly assigned to two groups: 24 followed a vegan diet for four weeks, while 24 followed a diet particularly high in meat. This may be correct technique for a small-n, short-duration study. But don't expect the results to be applicable to typical non-vegans.