Macro partitioning
Moderate carbohydrate restriction (30% energy) selectively worsens psychomotor speed (measured by SDMT) compared to a conventional diabetes diet, despite no effect on global cognition.
Be aware that switching to a moderate low-carb diet might make you feel slightly slower at processing information or performing quick mental tasks (like the Symbol Digit Test) in the first few weeks. However, this does not appear to affect your overall memory or general thinking ability, and this specific slowdown may improve with longer-term adherence.
The CRHP diet... selectively worsened the Symbol Digit Modality Test assessing psychomotor speed when compared with the CD diet ((cid:2)4.1 [-7.2;-1.1], p < 0.01).
Why this rating
Statistically significant difference (p<0.01) in a specific sub-test within an RCT, though the clinical relevance of a small change in SDMT score is debated in the discussion.
Source
Weight-loss induced by carbohydrate restriction does not negatively affect health-related quality of life and cognition in people with type 2 diabetes: A randomised controlled trial
Nicole Jacqueline Jensen et al. · Clinical Nutrition · 2022
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