Being Lord Wolfsbane’s attendant for nearly half millennia makes Bartholomew understands and always ready of his Lord’s whims and inquiries.
Recently, Lord Wolfsbane is learning this thing called “healthy lifestyle and take care of what you eat and drink” and Bartholomew decided to not comment anything on it. It’s good for his Lord to have interests and actually stick to it — last time his Lord trying something that the youngsters refer to as “yoga”, they had to do an extensive memory manipulating on half a dozen of mortals because how does his Lord know that “flying among the clouds” is actually a figurative expression, not actually flying?
His Lord’s new lifestyle is low risk too. It makes the tomato seller on the farmers market really happy, so it’s a win-win solution.