Eating one to three eggs a day for a month can raise your body's choline levels in a safe way — more eggs mean higher levels, but not so high that it becomes harmful.

We analyzed the available evidence and found that eating one to three eggs a day for a month is associated with an increase in choline levels in healthy adults. The evidence we’ve reviewed so far shows that higher egg intake leads to higher choline levels, but not to levels that appear harmful [1]. No studies in our review contradicted this pattern. Choline is a nutrient your body needs to support brain function, liver health, and cell structure. Eggs are one of the richest food sources of choline, and the data we’ve seen suggest that consuming them regularly can help raise your body’s choline supply in a gradual, steady way. The increase appears to be dose-related — meaning more eggs generally lead to higher levels — but within the range studied, there was no sign of excessive buildup that would raise concern. We did not find any evidence suggesting that this increase is unsafe or harmful for healthy adults. However, our analysis is limited to the specific range of one to three eggs per day over a one-month period. We don’t have data on longer-term intake, very high daily consumption, or individuals with pre-existing health conditions. What we’ve found so far leans toward eggs being a reliable dietary source of choline for healthy adults who eat them regularly. If you’re looking to support your choline levels through food, including eggs in your meals appears to be a practical approach based on the current evidence.