When whey protein is low-temperature-processed (raw or cold-processed) it retains many of its fragile immune factors and nutrients leaving it loaded with the ideal blend of easily-absorbed amino acids, anti-inflammatory immune factors and metabolism-boosting peptides, along with potent antioxidants and alkaline minerals.
Naturally produced whey is loaded with protein and when it is kept as pure and unprocessed as possible and made from the milk of pasture-fed cows, it is also loaded with antioxidants and important amino acids.
Most commercial whey powders are high-heat-treated, acid-flushed, and stripped of vital nutrients, creating an imbalanced, acidic "whey isolate" that's frequently contaminated with synthetic additives, chemical detergents, and heavy metals. It's no wonder that many of these whey products are hard to digest and have to cover up their acidic aftertaste with unhealthy synthetic tasting flavours.
It is important to use a brand that is free from pesticides and is made from the milk of cows that have not been treated with hormones and antibiotics. Plus, some popular leading brands of protein powder may contain dangerous levels of heavy metals.
A Consumer Reports test showed that 3 of the 15 protein drinks tested contained risky levels of arsenic, cadmium, and lead. All these factors render them inferior from a health perspective.