A prominent TV doctor has issued a plea to the public to stop pouring a valuable, nutrient-rich liquid down the sink, branding it 'liquid gold' for our health.
The 'liquid gold' we're all throwing away
Dr Amir Khan, a regular on programmes like Morning Live, took to social media to share a crucial piece of dietary advice. He highlighted a common kitchen habit that is wasting a potent source of nutrition.
He explained that the thin, watery substance which often separates and sits on top of a pot of yoghurt after a few days in the fridge is not a sign of spoilage. Instead, this liquid, known as whey, is incredibly beneficial and should be consumed.
"The watery whey that sits on top of yoghurt is actually liquid gold for your health - don't throw it away! Mix it in and eat it," Dr Khan advised his followers.
Why whey is a nutritional powerhouse
In a video message, Dr Khan sought to demystify the liquid, stating: "I know it looks a bit odd, but it's actually meant to be there... It naturally separates out from the yoghurt because yoghurt is a fermented food."
He emphasised that nothing is wrong with the product. "Nothing's spoilt, nothing is split, nothing is bad; it's not fat. It's actually where a lot of the nutrition lies," he said, as reported by Bristol Live.
This whey is a concentrated source of several key nutrients essential for the body. Dr Khan confirmed it contains:
- Protein
- Calcium
- Potassium
- B vitamins
He also pointed out its specific benefit for gut health, thanks to the fermentation process. His simple instruction is to stir the liquid back into the yoghurt before eating. "You're literally tipping away nutrients your body can use," he warned.
The science behind whey's health benefits
The Dairy Alliance explains that whey is a natural by-product when milk coagulates, separating into solid curds and liquid whey. Once considered a waste product, its high nutritional value is now widely recognised.
It is rich in essential amino acids, making it a complete protein source favoured by athletes and those focused on fitness. This is why it is often processed into whey protein powder.
Scientific research supports its role in a healthy diet. One NHS study noted that higher fasting blood sugar is a risk factor for type 2 diabetes and stated there is "significant interest in dietary factors that could reduce levels of blood glucose."
The study's existing evidence suggests dairy products, and especially whey protein, play an important role in controlling blood glucose levels.
Further research indicates that incorporating whey can assist in building muscle mass, supporting hormone production, and maintaining bone strength. When paired with a balanced diet and exercise, it can also contribute to sustainable weight management.
Dr Khan's final message was clear: "Anyway, mix it in, don't throw it away, and your body will thank you."
