Rejuvenation Domain

Rejuvenation is the form of energy that suffuses and awakens the universe, and keeps the foodfolk of Silverplate going.  Forces of rejuvenation provide coffee, fresh fruit, clear water, and all other types of food that symbolize awakening, freshness, and purification.  Their clerics know that it is their responsibility to provide such rejuvenation to those in need to protect the fresh sources.  They are aware that it is one of the greatest responsibilities one's shoulders can bear.

Bonus Proficiency

When you choose this domain at 1st level, you gain proficiency with heavy armor.

Purify Friends

Also starting at 1st level, you can affect your allies with the [spell[purify food and drink[/spell] spell, which ends the poisoned condition and removes all diseases.

Channel Divinity: Fresh Water

Starting at 2nd level, you can use your Channel Divinity to rejuvenate those who are hampered.
As an action, you present your holy symbol and make restorative water flow through your allies. Choose a number of friendly creatures up to your Wisdom modifier within 30 feet of you. Each chosen ally can choose to end one condition of their choice that is affecting them. If the chosen condition is exhaustion, burnt, or frozen, it decreases by 1 level.

Channel Divinity: Caffeine High

Also starting at 2nd level, you can use your Channel Divinity to empower your allies with caffeine.
As an action, you present your holy symbol and make a number of friendly creatures up to your Wisdom modifier within 30 feet of you feel a caffeine rush. Each chosen ally gains the benefits of a long rest instantly. After 1 minute, they suffer 2 levels of exhaustion.

Freshify

Starting at 6th level, you gain resistance to necrotic damage.
Also, you learn how to immediately freshen an ally who is in need. When you see a creature that drops to 0 hit points within 30 feet of you, you can use your reaction to have the creature drop to 1 hit point instead. You can use this feature a number of times equal to your Wisdom modifier. You regain any expended uses when you finish a long rest.

Keeper of the Cooked

Starting at 8th level, whenever you cast a spell that has a range of Self, you can change its range to Touch.  If the spell has a range of Touch, you can increase it to 30 feet.  However, you can't cast damage dealing spells or spells that harm other creatures using feature.

Food Saint

Starting at 17th level, you become an immortal protector of rejuvenation.  You stop again, you can't be aged magically, and gain immunity to necrotic damage.