Is eating dairy unhealthy?

Whether or not you should eat dairy products is one of the things that people most ask me about as a nutrition professional.

There’s the argument from the dairy industry and conventional medicine that, if you don’t eat dairy, you’re putting your bone health at risk.

Other health professionals (often in what we used to call ‘alternative medicine’) have long argued that consuming dairy products causes low-grade inflammation in the body, may increase the risk of cancer, drain your energy and give you spots.

Vegans also argue that eating dairy isn’t natural for humans, and that dairy farming involves cruelty to animals many of us are unaware of, plus it significantly contributes to global warming.

In this newsletter, I want to give you all the details on what’s good and not so good about dairy, and the positive benefits of giving up milk-based products. If you’re even considering ditching dairy, there is one really important thing you need to do. I’ll tell you about that, too.

Why should I eat dairy?

Dairy products contain a range of beneficial nutrients. Of course, there’s calcium, but it’s also a good source of protein, vitamins D and B12 and phosphorus.

Let’s talk about the calcium in dairy, because this is the thing you are told you will miss most if you stop consuming milk-based products.

When you get past 30, your process of bone breakdown is a bit speedier than new bone being made, so you need to make sure you’re getting good levels of this important mineral to fortify your frame. Although you can get calcium from other foods, the reason why dairy is touted as being the best source, is that the calcium from milk-based foods are more readily absorbed by the body*.  Skip down to the bottom of the story to find out how you can safely choose not to have dairy in your life. There are some specific foods you will need to eat.

Cow’s milk also contains the omega 6 fatty acid conjugated linoleic acid (CLA), which is considered to have health benefits. It is also contained in grass-fed beef. Studies suggest CLA can help with weight loss, and that people who have lot of foods containing CLA have a lower risk of diabetes and cancer**.

Is dairy bad for you?

The bottom line is that human beings weren’t designed to drink milk of any kind after the weaning period (around two years old). Not human milk, and certainly not milk from cows, sheep or goats. Some cultures have embraced drinking dairy products, and people in those cultures have genetically adapted to tolerate it. Others haven’t and for those people in particular, eating dairy can cause problems. Two of the biggest problems associated with dairy are digestive and skin issues.

Let’s have a look at the bad stuff in dairy products…

They contain growth hormones, which may be linked to increased risk of disease and some cancers.

And other hormones, too, like oestrogen. Small amounts, true, but still oestrogen. Some cancers and medical conditions like endometriosis, PMS, fibroids and even menopause are linked to a dominance of oestrogen compared to progesterone.

As well as having more naturally occurring sugar than you’d think. A cup of milk has about three teaspoons. Sugar, I hear you say. Where? The type of sugar in milk is called lactose. You might be tempted to say, ‘I’ll have lactose-free milk then’. Lactose-free milk has had the milk sugars broken into galactose and glucose. Same amount of sugars, different currency. However, the milk sugar is often the ingredient people do not tolerate, so a lactose-free milk can provide the benefits of regular milk without the dodgy tummy.

Non-organic dairy products contain antibiotic residues, so if you are eating dairy, make sure it’s organic.

Drinking it may raise your risk of certain types of cancer, but the evidence occasionally contradicts itself. You can read more where you see this sign at the bottom***.

And you’re more likely to get spots or have acne. **** The research stacks up that that’s the case, but scientists aren’t 100% sure of the reason dairy triggers acne, though it’s likely to be something to do with the hormones present in milk. Another theory is that dairy products disrupt insulin levels and make skin more prone to acne.

How will I feel if I give up dairy?

Everyone will be a little different but these are some of the reported benefits of ditching dairy:

  • Less nasal congestion and stuffiness.
  • Better sleep.
  • Clearer skin.
  • More energy.
  • Weight loss.
  • Reduction in bloating/ other digestive symptoms.
  • Fewer headaches.

I’m not going to go into the impact on the environment of consuming less dairy, and the animal welfare argument. Too many variables. I’ll leave you to just ponder that.

What are the alternatives if I don’t want to eat dairy?

Use these in porridge, overnight oats smoothies and the like.

My favourite non-dairy milks are almond, coconut, oat, rice – pretty much in that order and largely based on levels of sugars (naturally occurring). You’ll want to choose the unsweetened varieties if there is an option.

The foods you need to eat when you’re giving up dairy

You’ll be missing out on calcium for bones, so you’ll need to find it some place else. That means letting more of these foods into your diet on a daily basis: cabbage, spring greens, boy choy, kale, broccoli, okra, almonds, soya (edamame) beans and tofu, and fish where you eat the bones (like tinned sardines).

The RDA (recommended daily allowance or how much a healthy person needs to eat to not get sick) is 700mg a day.

A fist-sized serving of tofu can be between 200mg and 800mg. One serving in a stir fry at night could get you your calcium fix for the day.

  • Small can of sardines has 351mg.
  • 2tbsp sesame seeds have 280mg.
  • 2tbsp chia seeds has 179mg.
  • A cup-full of cooked kale has 177mg. Raw (because less fits in the cup), it’s 53mg.
  • A small handful (about 35g) almonds has nearly 100mg.
  • A cup of broccoli has 43mg.

Should I eat more spinach to increase calcium?

Some – like spinach or chard – contain oxalic acid, which binds to calcium and can mess with your body’s ability to absorb it properly. Turns out Popeye was eating the wrong sort of greens because, even though spinach technically has a lot of calcium, it’s only a tenth as bioavailable as that from milk due to the oxalic acid.

But, wait, I couldn’t give up…

You don’t have to. If you love pizza, try giving up dairy but having an exception for pizza. Although going completely dairy-free would be the goal, even taking most of the dairy out of your diet can still bring benefits. For most dairy products, there is an excellent dairy alternative. Some are most surprising. I wonder whether you have experienced the delicious creaminess a handful of cashews can bring to a soup, for example. However, there are some groups of people who really should give it a miss; those who have an intolerance to dairy would do well to remove it entirely for at least three months to heal the gut. And, if you have a true allergy to dairy (IgE), you will want to steer clear forever.

* https://www.ncbi.nlm.nih.gov/pubmed/17160208 OR https://www.researchgate.net/publication/261044065_Calcium_bioavailability_from_dairy_products_and_its_release_from_food_by_in_vitro_digestion

**  https://www.healthline.com/nutrition/conjugated-linoleic-acid#benefits

*** https://www.drweil.com/health-wellness/body-mind-spirit/cancer/does-milk-cause-cancer/

**** https://www.sciencedirect.com/science/article/pii/S0738081X10000416