1,400 Days and 750,000+ (extra) calories: Math, growth, and varsity baseball (part 2)

This is probably a good time to reiterate that we claim no expertise as nutritionists or dieticians. These posts are based on a lay reading of readily available information, plus a spreadsheet. Math is, after all, the great equalizer.

Where did we come up with that number? Does a 13-year-old athlete weighing 130 pounds really need to eat 750,000+ extra calories to grow to a 17-year-old athlete weighing 175 pounds?

Basically, yeah.

Look at the chart below. Ike adds about 1 pound per month every month until the summer before his senior year. Each pound he adds increases his maintenance caloric needs by 20 calories per day, or 600 calories per 30-day month. By the time he adds 10 pounds, he needs to eat over 6,000 more calories per month just to maintain that weight.

The caloric surplus needed for GROWTH is calculated separately, and conservatively. He probably needs about 2,800 calories to gain a pound of muscle and about 3,500 calories to gain a pound of fat. So each pound added is calculated as requiring about 3,000 excess calories. Add it all up and Ike needs to add 764,520 calories to his current baseline diet over the next 1,400 days.

Bon appetit, Ike!

Weight Maintain Days Monthly surplus Age Date
130 2,600 31 0 13.76 Oct-18
131 2,620 61 600 13.84 Nov-18
132 2,640 92 1240 13.92 Dec-18
133 2,660 123 1860 14.01 Jan-19
134 2,680 151 2240 14.08 Feb-19
135 2,700 182 3100 14.17 Mar-19
136 2,720 212 3600 14.25 Apr-19
137 2,740 243 4340 14.34 May-19
138 2,760 273 4800 14.42 Jun-19
139 2,780 304 5580 14.50 Jul-19
140 2,800 335 6200 14.59 Aug-19
141 2,820 365 6600 14.67 Sep-19
142 2,840 396 7440 14.76 Oct-19
143 2,860 426 7800 14.84 Nov-19
144 2,880 457 8680 14.92 Dec-19
145 2,900 488 9300 15.01 Jan-20
146 2,920 516 8960 15.08 Feb-20
147 2,940 547 10540 15.17 Mar-20
148 2,960 577 10800 15.25 Apr-20
149 2,980 608 11780 15.34 May-20
150 3,000 638 12000 15.42 Jun-20
151 3,020 669 13020 15.50 Jul-20
152 3,040 700 13640 15.59 Aug-20
153 3,060 730 13800 15.67 Sep-20
154 3,080 761 14880 15.76 Oct-20
155 3,100 791 15000 15.84 Nov-20
156 3,120 822 16120 15.92 Dec-20
157 3,140 853 16740 16.01 Jan-21
158 3,160 881 15680 16.08 Feb-21
159 3,180 912 17980 16.17 Mar-21
160 3,200 942 18000 16.25 Apr-21
161 3,220 973 19220 16.34 May-21
162 3,240 1003 19200 16.42 Jun-21
163 3,260 1034 20460 16.50 Jul-21
164 3,280 1065 21080 16.59 Aug-21
165 3,300 1095 21000 16.67 Sep-21
166 3,320 1126 22320 16.76 Oct-21
167 3,340 1156 22200 16.84 Nov-21
168 3,360 1187 23560 16.92 Dec-21
169 3,380 1218 24180 17.01 Jan-22
170 3,400 1246 22400 17.08 Feb-22
171 3,420 1277 25420 17.17 Mar-22
172 3,440 1307 25200 17.25 Apr-22
173 3,460 1338 26660 17.34 May-22
174 3,480 1368 26400 17.42 Jun-22
175 3,500 1399 27900 17.50 Jul-22
Extra Maintenance
629520
Weight Increase (pounds)
135000
764520
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