Eating up to three eggs a day for a month might help lower bad cholesterol and raise good cholesterol in healthy young adults, without making them gain weight or increasing a chemical linked to heart disease — which could be good for their heart health.

We analyzed one assertion about eggs and cholesterol in young adults, and it supports the idea that eating up to three eggs a day for a month might help lower LDL cholesterol and raise HDL cholesterol in healthy individuals of that age group [1]. The evidence we’ve reviewed so far does not show any studies that contradict this finding. It also suggests this level of egg consumption didn’t lead to weight gain or an increase in a chemical tied to heart disease risk [1]. What we’ve found so far is limited to just this single assertion, even though it’s supported by what’s listed as 46.0 instances of support. We don’t know how many actual studies this number represents, or whether those findings were consistent across different groups, diets, or measurement methods. The assertion focuses only on healthy young adults, so we can’t say whether the same pattern would appear in older people, those with existing health conditions, or individuals with different lifestyles. We also don’t know how long the effects lasted after the one-month period, or whether daily egg intake over years would have the same outcome. The absence of refuting studies doesn’t mean the effect is guaranteed — it only means we haven’t seen evidence against it yet. For young adults who eat eggs as part of a balanced diet, this suggests it may be possible to include up to three eggs a day without negative changes to cholesterol markers or weight — but more research would be needed to understand the long-term picture.