Lead Belly

Lead Belly is a perk in Fallout 3, Fallout: New Vegas, Fallout 4, and Fallout: The Board Game.

Effects
With the Lead Belly perk, 50% less radiation is taken every time you drink from an irradiated water source. In Fallout: New Vegas, this benefit extends to all irradiated food and drink.

Fallout 4
Taking this perk on early may help out a lot as most manufactured food carries a lot of rads, and RadAway is scarce in the beginning. Conversely, this perk has little value for high-level characters because foods provide only a fixed amount of hit points (whereas stimpaks restore a percentage). If you have two ranks of Solar Powered this perk is worth even less. However, in Survival mode, this perk is necessary due to the rads in food and water needed to stay satiated.

Fallout: The Board Game
After being obtained, it can be discarded to set radiation to zero.

Gallery
Bleimagen Barriga de plomo Boyaux Plombés (Compétence) Brzuch z Ołowiu Свинцовое брюхо Свинцеве черево