The album, which covers topics including nutrition, social commentary, and culture, features the viral 'Cucumba' song.
Talking to Plant Based News, the 51-year-old singer-songwriter, who currently has 20 albums under his belt, described music as a very powerful medium for vegan activism.
Health Is Wealth - which was also crafted by producers from Jamaica, Japan, Germany, and UK - encourages individuals to eat healthily, and also raises awareness of social issues including slavery.
"Music is a very powerful medium," Macka B told PBN. "You can say things in music that normally would turn people off in a conversation.
"But if you say it within a musical form, it breaks down a lot of bias that people have."
He adds: "With the message of veganism, I find that people are really switched off, and they’ll fight against it.
"I take a different, positive approach: ‘You know these fruits and vegetables? You know how good they are for you?’ and I put that in a musical way, and people gravitate towards it."
MacFarlane, a vegan for over 17 years, clarified that while everyone has a different method of spreading the vegan message, he wants to emphasize that entertainment can also be a powerful tool.
You can purchase the albumhere