Proof The Bible Is True

In the ever-evolving world of nutrition and weight loss, few food groups have been as controversial as dairy. Once hailed as a cornerstone of a healthy diet, then vilified as a contributor to weight gain, dairy products have experienced a rollercoaster of public opinion. However, recent scientific research is shedding new light on the potential benefits of dairy in weight management, revealing some surprising findings that may change how we view these nutrient-dense foods.

Dairy products have been a part of human diets for over 7,000 years, valued not just for their taste but also for their nutritional density. Throughout history, milk, cheese, and yogurt have been staples in many cultures, providing essential nutrients like calcium, protein, and various vitamins. However, as obesity rates began to rise in the late 20th century, dairy products — particularly those high in saturated fat — came under scrutiny when the anti-saturated fat campaign began.

Recent studies have begun to challenge the notion that dairy products are a causal factor for weight gain.¹ In fact, emerging evidence suggests that dairy might play a beneficial role in fat loss and body composition. Let’s dive into some of the intriguing findings.

Overall dairy consumption has been linked to increased lean body mass and reduced body fat.² This finding is particularly interesting because it suggests that dairy doesn’t just help with weight loss — it may actually improve body composition, helping individuals build and maintain muscle while losing fat.

A meta-analysis of multiple studies found that dairy consumption led to a reduction in fat mass (-0.23 kg) and an increase in lean body mass (0.37 kg).³ While these numbers might seem small, they represent a significant shift in body composition that can have long-term health benefits.

The benefits of dairy consumption aren’t limited to adults. One study of children found that high dairy intake was associated with a staggering 59% reduction in obesity risk.⁴ This finding has important implications for childhood nutrition and the prevention of obesity from an early age.

The Science Behind Dairy’s Weight Loss Benefits

So, how exactly does dairy contribute to weight loss and improved body composition? The mechanisms are complex and multifaceted, but researchers have identified several key factors:

A Deeper Dive Into the Mechanism: The Calcitriol Connection

To understand how dairy and calcium affect weight loss, we need to look at a hormone called calcitriol (also known as 1,25-dihydroxyvitamin D). When we eat low-calcium diets, our body produces more calcitriol. This hormone causes calcium to flow into fat cells, leading to:

1. An increase in lipogenic gene expression and lipogenesis (fat creation)
2. A suppression of lipolysis (fat breakdown)

The result? More fat stored in cells — exactly what we don’t want when trying to lose weight. But why does calcitriol increase on low-calcium diets? It’s all part of a complex hormonal cascade:

1. Low calcium intake increases parathyroid hormone (PTH).
2. PTH triggers a stress response in the body, essentially saying, “We don’t have enough calcium coming in!”
3. This leads to increased calcium absorption from food and removal of calcium from bones.
4. PTH signals tissues to convert the storage form of Vitamin D into calcitriol.
5. Calcitriol provides the signal to pull calcium out from bones and into the bloodstream.

Having elevated levels of calcitriol (arising from a low dietary calcium level) can negatively impact fat oxidation. However, high calcium diets (which keep PTH and calcitriol lower) can inhibit lipogenesis and instead promote lipolysis, lipid oxidation, and thermogenesis more so than a lower calcium diet.

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The Dairy Advantage: More Than Just Calcium

While calcium plays a significant role in dairy’s weight loss benefits, it’s not the whole story. Studies have consistently shown that dairy sources of calcium are more effective than supplemental calcium in promoting weight loss.⁶ This suggests that there’s something special about dairy beyond its calcium content.

One possibility is the unique combination of nutrients found in dairy products. Dairy is not just a source of calcium; it also provides high-quality protein, other minerals like magnesium and potassium, and various vitamins. This nutrient package “Whole Food Matrix” may work synergistically to promote weight loss and improved body composition.

Moreover, the saturated fatty acids found in dairy may improve energy balance even further through reduced fat synthesis and increased fat oxidation.⁷ This challenges the long-held belief that all saturated fats are detrimental to health and weight management.

Real-World Evidence: Studies Showing Dairy’s Impact on Weight Loss

Let’s look at some neat studies documenting how dairy can enhance weight loss efforts. A study published in the journal Obesity Research⁸ compared the effects of three different 24-week diets:

1. A standard diet with a 500 calorie per day deficit
2. A 500 calorie-deficit diet with supplemental calcium
3. A 500 calorie-deficit diet that included high-calcium dairy foods

The results were striking:

• Those on the standard diet (400 to 500 milligrams of dietary calcium per day) lost 6.4% of their body weight.
• Those on the calcium-supplemented diet (400 mg to 500 mg of calcium from food and 800 mg of supplemental calcium per day) lost 8.6% of their body weight — 38% more fat loss than the standard diet.
• Those on the high-calcium-foods diet (1,200 to 1,300 milligrams of calcium from dairy products and other calcium-rich foods) lost 10.9% of their body weight — a whopping 64% more fat loss than the standard diet!

But it wasn’t just about overall weight loss. The study also found differences in where the fat was lost. The percentage of belly fat loss was higher for those with the higher intake of calcium:

• Belly fat loss represented 19% of total fat loss on the low-calcium diet
• 50.1% on the calcium-supplemented diet
• 66.2% on the high-calcium-foods diet

This is particularly significant because belly fat (visceral fat) is associated with numerous health risks, including cardiovascular disease and Type 2 diabetes.

Another study⁹ looked at the effects of high dairy diets on 24-hour fat oxidation in subjects who were in a calorie deficit. The researchers found that consumption of a dairy-based high-calcium diet increased 24-hour fat oxidation under conditions of acute energy deficit. They hypothesized that these effects were due to increased fat oxidation during exercise.

This study provides a potential mechanism for how dairy can enhance weight loss efforts — by literally helping our bodies burn more fat throughout the day, especially during physical activity.

The Bigger Picture: Dairy in the Context of Overall Health

While the weight loss benefits of dairy are exciting, it’s important to view these findings in the context of overall health. Numerous epidemiological studies have found an inverse relationship between dairy intake and various health markers:¹⁰ the NHANES I and III studies, The Quebec Family Study, The CARDIA (Coronary Artery Risk Development in Young Adults) Study, and The HERITAGE Family Study.

All of these large-scale studies support an inverse relation between dietary calcium and dairy intakes and body fat, BMI, and the incidence of obesity. Moreover, dairy consumption has been associated with other health benefits, including improved bone health, reduced risk of Type 2 diabetes, and potentially lower risk of certain cancers.

Practical Implications: Incorporating Dairy Into a Weight Loss Diet

So, what does all this mean for someone trying to lose weight? Here are some practical takeaways:

Conclusion: A New Perspective on Dairy and Weight Loss

The relationship between dairy consumption and weight loss is complex and multifaceted. While dairy isn’t a magic bullet for weight loss, the growing body of evidence suggests that it can be a valuable tool in weight management efforts. From enhancing fat oxidation to improving body composition, dairy’s benefits extend far beyond its calcium content.

It’s important to remember that weight loss ultimately comes down to creating a calorie deficit. However, including dairy in your diet can help enhance the efficacy of an energy-restricted diet in achieving weight and fat losses by improving your metabolism and fat oxidation.

As with any dietary change, it’s essential to consider individual factors. But for many people, embracing dairy as part of a balanced, calorie-controlled diet could be a delicious and nutritious way to support their weight loss journey.

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About the Author

Ashley Armstrong is the co-founder of Angel Acres Egg Co., which specializes in low-PUFA (polyunsaturated fat) eggs that are shipped to all 50 states (join waitlist here), and Nourish Cooperative, which ships low-PUFA pork, beef, cheese, A2 dairy and traditional sourdough to all 50 states. Waitlists will reopen shortly.