Table 1.

Results of fits of the parameters of the model of equation (1) to diet recipe-related Internet search data

	A (%)	B (months)	C (%)	D (%)
Weight watchers recipes	128 ± 13	1·24 ± 0·10	–12 ± 5	–27 ± 5
Paleo recipes	48 ± 7	1·22 ± 0·16	–4 ± 3	–14 ± 3
Low carb recipes	71 ± 14	1·33 ± 0·15	–14 ± 4	–29 ± 6
Low fat recipes	78 ± 5	0·97 ± 0·08	–5 ± 3	–23 ± 3
South beach recipes	101 ± 12	0·72 ± 0·15	–26 ± 7	–33 ± 7

The parameter A is the relative increase in new January dieters (NJD) each year over the baseline long-term trends, and B is the average time NJD spend on the diet before dropping out (shown here in months). The parameters C and D are the relative change in the number of dieters during November and December, respectively.