写真出典：http://my-know.net/entertainment/7189/

米国のサイトで16人の金メダリストに摂取をさけているものを調査した結果があった。

16 Olympic Gold Medalists Reveal The Foods They Won't Eat

https://www.yahoo.com/beauty/16-olympic-gold-medalists-reveal-213520180.html

その結果、デザート、高砂糖食品、タコス、ピッザ、グルテン、砂糖（製糖）、白パン、チョコチップクッキー、お菓子、ドーナツ、ジャンクフード、アルコール、パッケージ食品、塩であった、

つまり、エネルギー源として砂糖や小麦粉食品などの炭水化物の摂取をしていないようである。

たしかに、糖質をエネルギー源とすると、乳酸が蓄積する。

エネルギー源を糖質以外（脂質？）にして、乳酸を貯めないようにしているのか？

詳細は不明であるが、脂質をエネルギー源とすると自転車の運動で疲労が少ないという報告もある。

Eur J Appl Physiol Occup Physiol. 1994;69(4):287-93.

Enhanced endurance in trained cyclists during moderate intensity exercise following 2 weeks adaptation to a high fat diet.

Lambert EV¹, Speechly DP, Dennis SC, Noakes TD.

Author information

Abstract

These studies investigated the effects of 2 weeks of either a high-fat (HIGH-FAT: 70% fat, 7% CHO) or a high-carbohydrate (HIGH-CHO: 74% CHO, 12% fat) diet on exercise performance in trained cyclists (n = 5) during consecutive periods of cycle exercise including a Wingate test of muscle power, cycle exercise to exhaustion at 85% of peak power output [90% maximal oxygen uptake (VO2max), high-intensity exercise (HIE)] and 50% of peak power output [60% VO2max, moderate intensity exercise (MIE)]. Exercise time to exhaustion during HIE was not significantly different between trials: nor were the rates of muscle glycogen utilization during HIE different between trials, although starting muscle glycogen content was lower [68.1 (SEM 3.9) vs 120.6 (SEM 3.8) mmol.kg-1 wet mass, P < 0.01] after the HIGH-FAT diet. Despite a lower muscle glycogen content at the onset of MIE [32 (SEM 7) vs 73 (SEM 6) mmol.kg-1 wet mass, HIGH-FAT vs HIGH-CHO, P < 0.01], exercise time to exhaustion during subsequent MIE was significantly longer after the HIGH-FAT diet [79.7 (SEM 7.6) vs 42.5 (SEM 6.8) min, HIGH-FAT vs HIGH-CHO, P < 0.01]. Enhanced endurance during MIE after the HIGH-FAT diet was associated with a lower respiratory exchange ratio [0.87 (SEM 0.03) vs (SEM 0.02), P < 0.05], and a decreased rate of carbohydrate oxidation [1.41 (SEM 0.70) vs 2.23 (SEM 0.40) g CHO.min-1, P < 0.05].(ABSTRACT TRUNCATED AT 250 WORDS)

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