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. 2021 Jul 29;11(8):e502. doi: 10.1002/ctm2.502

TABLE 1.

Ketone bodies increased during water‐only fasting

Ketone body D0 (%) D3 (%) D5 (%) D8 (%) D38 (%) D98 (%)
Grade 0 32 (78.1) 1 (2.4) 0 (0) 26 (63.4) 41 (100) 39 (95.1)
Grade 1 7 (17.1) 0 (0) 1 (2.4) 13 (31.7) 0 (0) 0 (0)
Grade 2 1 (2.4) 1 (2.4) 1 (2.4) 2 (4.9) 0 (0) 2 (4.9)
Grade 3 1 (2.4) 10 (24.4) 2 (4.9) 0 (0) 0 (0) 0 (0)
Grade 4 0 (0) 29 (70.8) 37 (90.3) 0 (0) 0 (0) 0 (0)
Z −5.647 −5.837 −0.965 −2.807 −1.589
P <0.001 <0.001 0.335 0.005 0.112