In Jain Dharma, both drinking alcohol and eating eggs are avoided because they harm life or the mind and break the vows of self-control and ahimsa (non-violence).

• Alcohol: Drinking intoxicants is strictly prohibited for both lay followers and monks in Jainism. It clouds the mind, weakens self-discipline, and can lead to harmful actions, which creates karmic bondage. This applies across Digambar and Shwetambar traditions. You can read more here .
• Eggs: Eggs (whether fertilized or unfertilized) are not considered acceptable in a Jain diet. They are seen as life or potential life and thus violate ahimsa and the ideal sattvic (pure) diet followed by both Digambar and Shwetambar traditions. You can read more here .

Which is “worse” can depend on context, but in practice:

• Alcohol directly opposes self-control and spiritual disciplines like samyama and pratikraman.
• Eggs involve violence toward life forms and disrupt a pure, sattvic diet.

Both are discouraged, and many Jain guides emphasize avoiding both to protect mind, body, and karmic progress.