Proteinmaxxing Trend May Drive Up Infant Formula Prices 2026

Proteinmaxxing, the viral trend of maximizing protein intake, is now being linked to higher infant formula prices, according to industry experts. The surge in demand for whey protein, a key ingredient in baby formula, has driven costs up dramatically, raising concerns for families who rely on formula feeding.

Why Proteinmaxxing Is Driving Up Whey Protein Costs

The proteinmaxxing movement, fueled by fitness influencers and health trends, has led to a spike in consumption of protein shakes, bars, and supplements. Whey protein concentrate, particularly the 80% pure form (WPC80), is the most sought-after ingredient. As more people adopt high-protein diets, manufacturers are competing for limited supplies, pushing prices to unprecedented levels.

Additionally, the rise of GLP-1 weight-loss medications has amplified demand. Users of drugs like Ozempic and Wegovy often increase protein intake to preserve muscle mass while losing weight, further straining the whey protein market.

Price Surge Data: A Stark Comparison

According to Expana, a global market intelligence platform, the price of WPC80 has more than doubled in recent months. In July 2025, it cost €11,733 per metric tonne; by early 2026, it had soared to €25,875. This dramatic increase is now trickling down to consumer goods, including infant formula.

Impact on Infant Formula Prices

Infant formula relies heavily on whey protein to mimic the protein composition of human breast milk. High-whey formulas are specifically designed for newborns and babies under one year old. As manufacturers face higher ingredient costs, they are likely to pass these increases onto consumers, as seen in previous cost-of-living crises.

Office for National Statistics data shows that the average price of a 750g box of baby formula has already risen by 4.8% over the past year, from £11.55 to £12.11. Experts warn this trend could accelerate if whey prices remain elevated.

Expert Concerns and Consumer Impact

Dr Vicky Sibson, director of the First Steps Nutrition Trust, an independent UK public health charity, expressed deep concern. "Whey is a major ingredient in infant formula, so significant increases in its price risk increasing the price of formula itself," she said. She also noted that the Competition and Markets Authority (CMA) has previously found that manufacturers pass on input cost rises to consumers.

"It is hugely concerning because mounting evidence shows that many families using formula to feed their babies find it unaffordable, and the coping strategies they use – like watering down formula – are dangerous," Dr Sibson added.

Key Takeaways for Parents and Policymakers

• Proteinmaxxing is driving up whey protein prices, directly impacting infant formula costs.
• GLP-1 weight-loss drugs are compounding demand for whey protein.
• Infant formula prices have already risen 4.8% in the past year, with further increases likely.
• Manufacturers historically pass on input cost increases to consumers.
• Families may struggle to afford formula, leading to unsafe feeding practices.

What Can Be Done?

Parents are advised to seek support from health visitors or community programs if they struggle to afford formula. Policymakers are urged to monitor the market and consider interventions to protect vulnerable families. Meanwhile, the infant formula industry may need to explore alternative protein sources or negotiate long-term contracts to stabilize prices.

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