Four Sigmatic's vanilla powder delivers 20g complete protein per serving with organic mushroom blend, greens, fruit, and a digestive blend (prebiotics and probiotics). Mixes smooth into milk or smoothies without the gritty texture of cheaper plant proteins. Contains hemp protein (tested to <5 ppm THC) and no refined sugar or artificial sweeteners.
Multiple RCTs and meta-analyses show plant-based proteins support muscle protein synthesis and strength gains comparable to animal proteins when total protein intake and amino acid profiles are matched. A 2021 meta-analysis found no significant difference in muscle mass or strength outcomes between plant and animal protein sources in resistance-trained individuals consuming adequate total protein.
Plant-based proteins (from sources like pea, soy, hemp, rice) provide amino acids needed for muscle protein synthesis and tissue repair. They contain lower amounts of certain essential amino acids (particularly methionine and leucine) compared to animal proteins, but can meet daily protein requirements when consumed in adequate quantities or combined with complementary sources.
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Randomized trial
“CONTEXT: Dietary protein is recommended for sarcopenia-a debilitating condition of age-related loss of muscle mass and strength that affects 27% of older adults.”
“BACKGROUND: Recent evidence suggests that both animal and plant proteins support strength and hypertrophy gains when paired with resistance training and adequate protein intake.”
“Maintaining muscle mass, strength, and function is crucial for our aging population.”
“BACKGROUND: Plant-based protein supplementation in supporting muscle recovery following resistance exercise remains an area of growing interest, particularly among vegan athletes, as a potential alternative to animal-based proteins.”
Plant proteins are generally less bioavailable and have lower leucine content per gram than whey or animal sources, requiring slightly higher total intake to achieve equivalent muscle-building effects. Most positive trials used isolated plant protein powders rather than whole-food plant sources, which have lower protein density. Long-term adherence and whole-food plant-based diet outcomes in strength athletes remain less studied than animal protein.
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