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Greek Yogurt & Its Ups and Downs

tzatziki cetriolo e yogurtAre you a fan of Greek yogurt? The spelling is yogurt in the USA and yoghurt in the UK (and elsewhere) but the information on this popular health product is the same everywhere. Or is it? Greek yogurt's nutritional superiority has helped elevate this dairy product to super food status in the USA. Its sales have doubled in 5 years but of course with popularity come the less than healthy impostors.

What makes Greek yogurt so special?

The difference between Greek yogurt and regular yogurt is that the whey is strained off to make it really thick and creamy. Along with the whey removal, there is less sugar, fewer carbohydrates, and a lot more protein compared to regular yogurt. However because the use of the term "Greek" is unregulated, and the straining process can require costly equipment, some yogurt brands are producing "Greek" yogurts that haven't been made the traditional way. Instead, thickening agents like corn starch and milk-protein concentrate are added to mimic the rich texture of strained yogurt. Whether or not this leads to an inferior product, is open to question.

How do you ensure your Greek yogurt is genuine?

1. Read the ingredients because the list should only contain two - milk and live active cultures. 2. Steer clear of the shelf rather than the refrigerator. Yogurt companies aren't the only impostors trying to steal the super food's spotlight. Other food producers have jumped on the Greek bandwagon by unveiling packaged foods like cereal and granola bars claiming to contain Greek yogurt - these can just as easily be junk foods in disguise. 3. Don't count on live active cultures. If you want to ensure your yogurt is packed with probiotics—which have been shown to promote digestive health, boost immunity and even prevent yeast infections— make sure the label says “contains live active cultures” rather than “made with live active cultures”. That difference is important.

There are serious implications to the environment with the production of Greek yogurt

It takes 4 pounds of milk to make 1 pound of authentic Greek yogurt but what happens to the other 3 pounds? It's strained out of the yogurt as a thin liquid called whey, and getting rid of that whey is causing a headache. It cannot be just washed away or dumped down the drain because this creates a negative impact for the environment when a lot of milk sugars go into the water supply. This milk sugar can be a BIG problem for septic systems and sewage disposal systems, as well entire water systems. The lactose will be consumed by bacteria, changing the acidity and altering life in the streams and rivers. In large commercial operations, this can be serious enough to strip oxygen to create serious die-off or dead watersheds. This is why it is illegal for large corporations to dump whey into the water system. The whey from cheese making has much more value - being a source of lactose and concentrated protein that ends up in other food products (including even the thickened version of Greek yogurt). On the other hand, the whey from Greek yogurt makers is of considerably less value, containing fewer solids and being more acidic. The race is on to find an environmentally friendly and even valuable use for it.

Solutions for this environmental problem

There are several in the pipeline...
  • The US Department of Agriculture (USDA) have tasked a company to complete the development of technology to alleviate the issue. You can find out more at this site.
  • One solution has been at Rejman’s farm in Scipio Center, N.Y. where they’re converting the lactose into methane that can generate electricity. Their expensive set-up was installed 5 years ago, requiring a big capital investment of $4.5 million, $1 million of which the farm's owners got back through a state subsidy.
  • Scientists at the Center for Dairy Research at the University of Wisconsin, Madison, have been experimenting to get edible-grade lactose out of acid whey (valuable as an ingredient in icing and as a browning agent in bread).
  • While there are no industry-wide statistics on where all the whey is going, it is often hauled to farms near the yogurt factories where it can be mixed into feed or fertilizer.
  • A series of patent applications from General Mills reveals it has been exploring novel ways to ‘neutralize’ acid whey - a byproduct of some Greek yogurt production - and use it in value-added food products, while Dannon and Chobani are also making progress in tackling the industry-wide challenge. You can find out more here. Unfortunately, all three companies are more famous for their processed “foods” rather than any genuine health products.
In the meantime and while we are waiting for a genuine solution to the problem...

Did you know that Greek yogurt makes an excellent sunburn reliever?

Let it sit on your affected area of sunburn until it warms up before rinsing it off with tepid water. Keep on applying until you feel relief.