Another intermittent fasting eating pattern is one that's now called 5:2 intermittent fasting. And this is where the individual, 2 days a week, they'll only eat one moderate sized meal of, say, 600 calories in those 2 days, then the other 5 days they eat normally. And so, in that case, 5:2 intermittent fasting, the person will have the metabolic switch occurring two days a week, but not the other five.