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Choline analogues include several compounds that mimic or fulfill similar biological roles as choline. These analogues often serve as substitutes or are used in research to study choline metabolism and functions. Some notable choline analogues are:

  1. Betaine: Acts as a methyl donor in metabolic pathways, similar to choline.
  2. Phosphatidylcholine: A major component of cell membranes, often derived from choline.
  3. Citicoline (CDP-choline): A compound that can convert to both choline and cytidine, used in brain health supplements.
  4. Alpha-GPC (Alpha-glycerylphosphorylcholine): Known for its potential cognitive benefits and also acts as a choline source.

These analogues are studied for their roles in enhancing cognitive functions, liver health, and cellular membrane integrity.