Ajwa dates
I heard Allah’s Messenger (ﷺ) saying, “Whoever takes seven ‘Ajwa dates in the morning will not be effected by magic or poison on that day.”
Black seed
Narrated Abu Huraira:
I heard Allāh’s Apostle saying, “There is healing in black seed for all diseases except death.” – al-Bukhari 5688
Senna and Sannut
“I heard Abu Ubayy bin Umm Haram, who had prayed with the Messenger of Allah (ﷺ) facing both the Qiblah, saying: ‘I heard the Messenger of Allah (ﷺ) say: “You should use senna and the Sannut, for in them there is healing for every disease, except the Sam.” It was said: “O Messenger of Allah, what is the Sam?” He said: “Death.” (One of the narrators) ‘Amr said: “Ibn Abu ‘Ablah said: the ‘Sannut is dill.” Others said: “Rather, it is honey that is kept in a skin (i.e., receptacle) used for ghee.” – Ibn Majah
Honey
Narrated Ibn `Abbas:
(The Prophet (ﷺ) said), “Healing is in three things: A gulp of honey, cupping, and branding with fire (cauterizing).” But I forbid my followers to use (cauterization) branding with fire.” – Sahih al-Bukhari 5680
Olive Oil
It was narrated from ‘Umar that the Messenger of Allah (ﷺ) said:
‘Season (your food) with olive oil and anoint yourselves with it, for it comes from a blessed tree.” Sunan Ibn Majah 3319