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Is it better to stop drinking milk? A look at the science

4 min read

While many view milk as a dietary staple for strong bones, approximately 65% of the world's population struggles with digesting lactose after infancy. The question of whether it is better to stop drinking milk is a complex one, with potential benefits and drawbacks for different individuals.

Quick Summary

The decision to stop drinking milk depends on individual health needs, tolerance, and nutritional goals. For some, it may alleviate digestive issues and improve skin, while others must carefully plan to replace lost nutrients like calcium and vitamin D.

Key Points

  • Lactose intolerance is common: A large portion of the global population has difficulty digesting milk, leading to bloating and other discomforts.

  • Nutrient replacement is crucial: Eliminating milk requires careful planning to replace vital nutrients like calcium, Vitamin D, and B12 with other foods or supplements.

  • Dairy's effect on inflammation is debated: While some with inflammatory conditions report benefits, scientific research does not conclusively prove that dairy causes systemic inflammation in the general population.

  • Skin health may improve: Some individuals, particularly those with acne, report clearer skin after removing dairy from their diet.

  • Consult a professional: Before making a major dietary change, it is wise to consult a doctor or registered dietitian to ensure proper nutritional planning.

  • Plant-based alternatives are varied: Options like soy, almond, and oat milk offer different nutritional profiles and are often fortified with key vitamins and minerals.

In This Article

The Case for Considering a Dairy-Free Diet

For many, moving away from dairy is prompted by uncomfortable digestive symptoms. Lactose intolerance, caused by a deficiency of the enzyme lactase, leads to issues like bloating, gas, stomach cramps, and diarrhea after consuming dairy products. A staggering 65% of people globally have this difficulty, meaning a significant portion of the population is likely to experience digestive relief by cutting out milk. Beyond discomfort, some individuals report improvements in other areas of their health when they stop drinking milk.

Potential Benefits of Eliminating Dairy

  • Improved Skin Health: Some evidence suggests a link between dairy consumption and acne, possibly due to milk's effect on insulin-like growth factor 1 (IGF-1) levels, which can increase sebum (oil) production. Dermatologists have observed that removing dairy can improve skin texture and reduce breakouts in some patients.
  • Reduced Inflammation: Although the link between dairy and systemic inflammation is debated, some individuals with inflammatory conditions, like inflammatory bowel disease (IBD), may find that eliminating dairy reduces their symptoms. Anecdotal reports also suggest reduced brain fog and joint pain for some who go dairy-free, though scientific consensus is mixed.
  • Hormonal Balance: Cow's milk contains naturally occurring hormones, including estrogen and progesterone. While the quantities are generally low, some argue that these can impact the body's hormonal balance, particularly in sensitive individuals.
  • Weight Management: While dairy itself doesn't cause weight gain, eliminating high-calorie, sugary dairy products can lead to weight loss due to reduced overall caloric intake. However, simply replacing dairy with other high-calorie foods may negate this effect.

The Nutritional Challenge: What You Miss

Milk and dairy products are significant sources of vital nutrients, and simply stopping consumption without a proper plan can lead to deficiencies. This is one of the primary reasons to exercise caution when deciding to stop drinking milk.

Nutrients and Replacements

  • Calcium: A cornerstone of bone health, calcium is plentiful in milk. Without it, the risk of osteoporosis can increase. Non-dairy sources are widely available and include leafy greens (kale, collard greens), fortified plant-based milks, calcium-set tofu, and canned salmon or sardines with bones.
  • Vitamin D: Many milk products are fortified with vitamin D, which is essential for calcium absorption. Fortified milk alternatives, fortified juices, and regular sun exposure can help maintain adequate levels. Fatty fish like salmon and sardines also contain natural vitamin D.
  • Protein: Dairy is an excellent source of protein. Plant-based milk options like soy milk and pea milk offer higher protein content than almond or oat milk and can be part of a balanced protein intake from other food sources like legumes, nuts, and seeds.
  • Vitamin B12: This vitamin is crucial for nerve function and is often found in dairy products. Those going dairy-free should ensure their diet includes fortified foods or consider supplementation, as deficiencies can weaken the immune system.

Is It Better for Everyone? Weighing the Evidence

For most healthy adults, milk does not appear to be a major inflammatory agent. Systematic reviews of clinical trials have found that dairy consumption is generally neutral or even beneficial for systemic inflammation markers. Therefore, if you do not have an intolerance, allergy, or other condition exacerbated by dairy, stopping milk might not offer significant health improvements, and could even cause nutrient deficiencies if not managed properly.

Ultimately, whether it is better to stop drinking milk depends on your specific health context. For some, the benefits of avoiding dairy far outweigh the challenges of finding nutrient substitutes. For others, the convenience and nutritional density of milk make it a valuable dietary component. Consulting a dietitian is recommended before making major dietary changes.

Comparing Dairy and Plant-Based Milks

Feature Cow's Milk Fortified Soy Milk Fortified Almond Milk Fortified Oat Milk
Protein (per 1 cup) ~8 grams ~7-8 grams ~1 gram ~3-4 grams
Calcium (per 1 cup) ~300 mg ~300 mg ~450 mg ~350 mg
Vitamin D (per 1 cup) ~100 IU ~100 IU ~100 IU ~100 IU
Saturated Fat Varies by fat content Low Low Moderate
Calories (per 1 cup) 90-150 80-100 30-60 90-120
Best Use General consumption, cooking Cooking, baking, general use Cereal, smoothies Coffee, sauces, general use

Conclusion: Making an Informed Decision

Deciding whether it's better to stop drinking milk is a personal journey that requires careful consideration of both the potential benefits and risks. For those with digestive issues like lactose intolerance, eliminating dairy can provide immediate relief and improve gut health. Some individuals may also see improvements in skin clarity and reduced inflammation. However, milk is a nutrient-dense food, and a dairy-free diet must be carefully managed to ensure adequate intake of calcium, vitamin D, and protein, among other nutrients. Fortified plant-based milks, leafy greens, legumes, and certain fish can effectively replace the nutrients found in milk. For those who tolerate dairy well, the evidence does not definitively support eliminating it for inflammation reduction. The best approach is to listen to your body, consult with a healthcare professional, and make a decision based on your individual health profile and dietary needs.

Dairy Nutrition Canada offers an overview of research regarding dairy and inflammation.

Frequently Asked Questions

It can be healthy, provided you replace the nutrients milk provides. You must ensure you get enough calcium, vitamin D, protein, and B12 from other sources like leafy greens, fortified plant-based milks, and supplements.

For those with an intolerance, you may experience less bloating, gas, and digestive discomfort. You might also notice skin improvements. However, without careful replacement, you risk nutrient deficiencies.

Stopping milk can lead to weight loss if you reduce your overall calorie intake by cutting out high-fat or sugary dairy products. If you replace the calories with other foods, weight loss is less likely.

Fortified soy and almond milks are excellent sources of calcium. Other options include calcium-set tofu, leafy greens like kale and broccoli, and canned sardines with bones.

For most healthy individuals, milk does not appear to cause systemic inflammation. However, for those with a milk allergy or sensitivity, it can trigger an inflammatory response. Research shows mixed results for the general population.

Symptoms of lactose intolerance include bloating, gas, stomach pain, and diarrhea after consuming dairy. A doctor may suggest an elimination diet or a hydrogen breath test for diagnosis.

For infants, breast milk is recommended. For older children, a dairy-free diet is possible but should be carefully managed under pediatric supervision to ensure proper growth and calcium intake for bone development.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.