87% of US adults think animal products are key for protein with mixed perceptions about the adequacy of plant-based protein sources.
A recent survey conducted by the Physicians Committee for Responsible Medicine (PCRM) in collaboration with Morning Consult found that 87% of US adults believe consuming animal products is important for obtaining sufficient protein. The poll, conducted on January 22-23, 2025, included responses from 2,203 adults.
Despite this widespread belief, 57% of respondents said they think it is possible to build muscle on a plant-based diet, while 22% disagreed, and 21% were unsure. The results indicate mixed perceptions about the adequacy of plant-based protein sources.
Variations in beliefs across demographics
Women and Gen Z adults were the least likely to agree with the idea that animal products are necessary for adequate protein intake. Republicans (91%) and adults with a bachelor’s degree (90%) were among the most likely to support the notion. The lowest agreement rate among any demographic subgroup was 84%.
When asked specifically about plant-based diets, 52% of respondents said they believe a plant-based diet can provide sufficient protein, while 32% disagreed. Black adults (61%), Millennials (59%), and residents of the Western United States (58%) were the most likely to agree, whereas Gen Z adults (46%) and Republicans (47%) were the least likely.
Beliefs about muscle-building on a plant-based diet also varied. Postgraduates (65%) and Millennials (64%) were the most likely to believe plant-based diets support muscle growth, while rural residents, Republicans, men, and Baby Boomers (all 52%) were among the most skeptical.
Research on plant-based protein
According to Dr. Roxanne Becker of PCRM, research indicates that plant-based protein can be as effective as animal protein for muscle maintenance and growth. “Plant protein has been shown in randomized controlled trials to be as effective as animal protein for building muscle when the amounts of protein are equal,” Becker said.
The recommended daily protein intake for an average adult is 0.36 grams per pound of body weight, equating to 56 grams for a 155-pound man and 46 grams for a 128-pound woman. Higher protein intake is advised for those engaging in regular strength training, with guidelines suggesting 0.54 to 0.91 grams per pound of body weight.
Dr Becker said, “As we age, it’s important to consume enough protein to maintain our muscle mass so we can avoid frailty. Plant protein sources, which contain no artery-clogging cholesterol and are low in saturated fat, should be the go-to.”
Original source: https://vegconomist.com
https://www.animalagricultureclimatechange.org/protein-sources-environment/
