Source and Origin. Extraction and Manufacturing Process. The conversion of sheep wool lanolin into a high-quality supplement involves a sophisticated, multi-step purification process:

Source and Origin&#xA0;<ul><li>Sourcing:&#xA0;The Vitamin D3 (cholecalciferol) in Dr. Berg products is derived fromlanolin, which is extracted from the wool grease of sheep.</li><li>Location: These sheep are raised in Australia and New Zealand.</li><li>Rearing Practices: The sheep used for production are pasture-grazed. While conventional farming in these regions may involve some pesticide use on pastures or animals, the lanolin undergoes an extensive purification process.</li><li>Safety Standards: The final Vitamin D3 extract complies with all international safety standards and is purified to remove contaminants.</li></ul>Extraction and Manufacturing Process&#xA0;The conversion of sheep wool lanolin into a high-quality supplement involves a sophisticated, multi-step purification process:&#xA0;<ol><li>Purification: Lanolin is extracted from the wool and converted into purified Vitamin D3 crystals.</li><li>Dissolution: These crystals dissolve in caprylic/capric triglyceride oil (MCT oil).</li><li>Stabilization: The mixture is stabilized with d-alpha-tocopherol (Vitamin E) to prevent oxidation.</li></ol>

Sourcing, Extraction and Manufacturing Process: Vitamin D3 (Cholecalciferol)

Cholecalciferol, also known as vitamin D3, has been used as a rodenticide, particularly for controlling rat populations. In rats, the median lethal dose (LD50) is about 50 mg per kg of body weight, meaning it takes a relatively small amount to become

Cholecalciferol, also known as vitamin D3, has been used as a rodenticide, particularly for controlling rat populations. In rats, the median lethal dose (LD50) is about&#xA0;50 mg per kg of body weight, meaning it takes a relatively small amount to become fatal. In contrast, humans require drastically higher amounts for cholecalciferol to reach toxic or lethal levels&#x2014;upwards of 2,450 mg, or roughly&#xA0;98 million IU. For perspective, this is thousands of times more than typical daily supplementation, and even reaching 1&#x2013;2 million IU would require extreme and prolonged intake.This difference in sensitivity highlights the species-specific effects of cholecalciferol. Rats are far more vulnerable to it than humans, which is why it can be used effectively and lethally in pest control, even at doses that are harmless to humans.To better understand this, consider the analogy of&#xA0;cacao and chocolate. Cacao is the raw ingredient in chocolate, and moderate amounts provide health benefits to humans. However, even small quantities can be toxic to certain animals, like dogs or cats. Similarly, cholecalciferol is essential and beneficial for human health in the right amounts&#x2014;but for rats, the same compound in even modest doses can be deadly.The vitamin D3 used in our products is derived from&#xA0;lanolin, a natural substance found in sheep&#x2019;s wool. Like human skin, lanolin can convert UV light into vitamin D3, making it a bioidentical and safe supplement source.In summary,&#xA0;cholecalciferol is vital for human health and safe in appropriate doses, but it acts as a targeted poison for pests like rats due to their vastly higher sensitivity.

Is cholecalciferol in Dr. Berg's Vitamin D3 & K2 toxic to humans?

How to Choose Your Usage:10,000 IU: This option is well-suited for those with lower levels of sun exposure or for individuals seeking a higher-potency supplement to support a healthy immune response. 5,000 IU: This is a standard strength for those lo

<h3 data-block="true" data-editor="515q9" data-offset-key="37a8d-0-0" id="isPasted"><div data-offset-key="37a8d-0-0">How to Choose Your Usage:</div></h3><div data-block="true" data-editor="515q9" data-offset-key="4hg92-0-0"><div data-offset-key="4hg92-0-0">10,000 IU: This option is well-suited for those with lower levels of sun exposure or for individuals seeking a higher-potency supplement to support a healthy immune response. </div></div><div data-block="true" data-editor="515q9" data-offset-key="7rrpb-0-0"><div data-offset-key="7rrpb-0-0">5,000 IU: This is a standard strength for those looking to maintain their current levels or who receive regular sunlight.</div></div>

How do I know if I need 10,000 or 5,000IU of Vitamin D3 & K2?

Our Vitamin D3 is derived from lanolin (sheep wool), so we do not know if someone with alpha-gal syndrome can use this product. Please consult with your healthcare professional to confirm whether you can use our products.

Our Vitamin D3 is derived from lanolin (sheep wool), so we do not know if someone with alpha-gal syndrome can use this product. Please consult with your healthcare professional to confirm whether you can use our products.&#xA0;

Can someone with Alpha-gal take Dr. Berg Vitamin D3 & K2?

The K2 MK7 in our D3 & K2 vitamins is in the trans form.

The K2 MK7 in our D3 &amp; K2 vitamins is in the trans form.

Is Vitamin K2 (MK7) CIS or Trans in Vitamin D3 & K2?

The Benefits of Vitamin D3 & K2:. Heart Health: Vitamin D3 and K2, when combined, may support cardiovascular function. Vitamin K2 helps direct calcium towards the bones, which is important for maintaining healthy arteries. Bone Health: Vitamin D3 and

The Benefits of Vitamin D3 &amp; K2:<ul><li>Heart Health: Vitamin D3 and K2, when combined, may support cardiovascular function. Vitamin K2 helps direct calcium towards the bones, which is important for maintaining healthy arteries.&#xA0;</li><li>Bone Health: Vitamin D3 and K2, when taken together, may support healthy bones and teeth. Vitamin D3 helps the body absorb calcium, while K2 helps direct calcium towards the bones.&#xA0;</li><li>Skin Health: Vitamin D3 and K2 promote healthy skin by contributing to skin cell growth and repair.&#xA0;</li><li>Overall Calcium Management: Vitamin D3 and K2, when taken together, may support healthy calcium levels and utilization.&#xA0;</li></ul>

What are the benefits of taking vitamin D3 & K2?

Yes, it is safe to use our Vitamin D3 & K2 5000 IU and 10,000 IU if it arrives frozen. Vitamin D3 may lose some of its nutritional value at temperatures below 18 degrees.

Yes, it is safe to use our Vitamin D3 &amp; K2 5000 IU and 10,000 IU if it arrives frozen. Vitamin D3 may lose some of its nutritional value at temperatures below 18 degrees.&#xA0;

Is it okay to use Vitamin D3 & K2 5000 IU and 10,000 IU if it arrives frozen?

The magnesium included in the D3 & K2 formula is specifically there to support the activation of vitamin D3. It is largely utilized during the conversion and metabolic processes required for D3 to function effectively in the body. With that, the magn

<div style=" text-decoration: none;" id="isPasted">The magnesium included in the D3 &amp; K2 formula is specifically there to support the activation of vitamin D3. It is largely utilized during the conversion and metabolic processes required for D3 to function effectively in the body. With that, the magnesium present in this product is not intended to contribute meaningfully to daily magnesium intake and should not be counted toward overall magnesium requirements.</div>

Should I take a separate magnesium supplement in addition to the magnesium included in the D3/K2 formula?

In rare cases, you may need to avoid taking vitamin D. The main side effect of taking too much vitamin D is hypercalcemia, or excess calcium in the blood. This is because vitamin D increases calcium absorption by up to 20x. It is very rare to have to

In rare cases, you may need to avoid taking vitamin D.The main side effect of taking too much vitamin D is hypercalcemia, or excess calcium in the blood. This is because vitamin D increases calcium absorption by up to 20x.It is very rare to have toxic effects of vitamin D. There are several studies out there that state&#xA0;that you would have to consume hundreds of thousands of IU of vitamin D for several months to&#xA0;develop hypercalcemia. In the 1940&#x2019;s, they used 200,000 to 300,000 IU of vitamin D3 to treat TB and rheumatoid arthritis, and yes, there were some side effects, but they dealt with them.The whole idea of taking 10,000 IU, or of 20,000 IU being a lot, is actually misleading; that&#x2019;s not as much as you think. If you convert IU to milligrams, you will be shocked by how little that is.Symptoms of hypercalcemia:<ul><li>Kidney stones</li><li>Bone pain</li><li>Excessive urination</li><li>Muscle weakness</li><li>Depression</li><li>Anxiety</li></ul>A few things to help prevent vitamin D toxicity:<ul><li>Vitamin K2 (100 mcg for every 10,000 IU of vitamin D) &#x2013; vitamin D needs other things like vitamin K2 to work. Vitamin K2 helps prevent calcium from accumulating in soft tissues.</li><li>Bile salts &#x2013; important to help with the absorption of vitamin D.</li><li>Fluid &#x2013; at least 2.5 liters per day. This should be enough to help keep the calcium from forming kidney stones.</li><li>Magnesium &#x2013; Magnesium and vitamin D work together. Magnesium is very important in the metabolism of vitamin D.</li><li>Limit dairy &#x2013; Limit dairy intake when taking a lot of vitamin D.</li></ul>Amounts of vitamin D you may want to consider taking:<ul><li>For maintenance: 5,000 to 10,000 IU</li><li>For therapeutic purposes (short-term use): 20,000 to 50,000 IU</li></ul>When not to take vitamin D:<ul><li>Sarcoidosis</li><li>Primary hyperparathyroidism</li><li>Familial hypocalciuric hypercalcemia</li><li>Lithium</li><li>Diuretics (hydrochlorothiazide)</li><li>Certain cancers</li><li>Hyperthyroid</li></ul>

What are the side effects of Vitamin D?

Magnesium in Dr. Berg’s Vitamin D3 & K2 Formula. To support the activation and transport of Vitamin D3, our formulas include a targeted amount of Magnesium Citrate:. Why Magnesium is Included. Dr. Berg often teaches that magnesium is the "essential c

Magnesium in Dr. Berg&#x2019;s Vitamin D3 &amp; K2 Formula&#xA0;To support the activation and transport of Vitamin D3, our formulas include a targeted amount of&#xA0;Magnesium Citrate:&#xA0;<ul><li style="font-size: 16px;">Vitamin D3 &amp; K2 (5,000 IU): Contains 12.5 mg of&#xA0;magnesium citrate per serving.</li><li style="font-size: 16px;">Vitamin D3 &amp; K2 (10,000 IU): Contains 25 mg of&#xA0;magnesium citrate per serving.</li></ul>Why Magnesium is Included&#xA0;Dr. Berg often teaches that magnesium is the &quot;essential co-factor&quot; for Vitamin D. Without sufficient magnesium, your body cannot effectively convert Vitamin D into its active, usable form. Including magnesium citrate directly in the formula ensures that these nutrients work together synergistically to support your bone health and immune system. &#xA0;

How much magnesium citrate is in Vitamin D3 & K2 5,000 & 10,000 IU

While both MK-4 and MK-7 are forms of Vitamin K2 (menaquinones), they behave very differently in your body. Dr. Berg often describes Vitamin K2 as the "traffic cop" for calcium—it ensures calcium goes into your bones and teeth and stays out of your s

While both MK-4 and MK-7 are forms of Vitamin K2 (menaquinones), they behave very differently in your body. Dr. Berg often describes Vitamin K2 as the &quot;traffic cop&quot; for calcium&#x2014;it ensures calcium goes into your bones and teeth and stays out of your soft tissues, like your arteries and kidneys.&#xA0;Here are the primary differences between the two:&#xA0;1. Source and Origin&#xA0;<ul><li style="font-size: 16px;">MK-4 (Menaquinone-4):&#xA0;This is a synthetic form often used in low-quality supplements, though it does occur naturally in animal products like grass-fed butter, egg yolks, and organ meats.</li><li style="font-size: 16px;">MK-7 (Menaquinone-7):&#xA0;This is a natural form typically derived from fermented foods, most notably Natto (fermented soy). Dr. Berg uses MK-7 in his formulas because of its superior bioavailability. However, the form of MK-7 we use is synthetic.</li></ul>2. Half-Life (How long it stays in your body)&#xA0;This is the most significant functional difference:&#xA0;<ul><li style="font-size: 16px;">MK-4 has a very short half-life: It only stays in your blood for a few hours. To maintain effective levels, you would need to take it multiple times a day.</li><li style="font-size: 16px;">MK-7 has a long half-life:&#xA0;It stays active in your bloodstream for 24 to 72&#xA0;hours.&#xA0;This allows it to build a consistent &quot;reserve&quot; in the body, providing much better protection for your cardiovascular system and bones with just one daily dose.</li></ul>Dr. Berg&#x2019;s Recommendation&#xA0;Dr. Berg uses MK-7 in his Vitamin D3 &amp; K2 formula because it works synergistically with Vitamin D. Since Vitamin D increases calcium absorption, you need a long-lasting &quot;traffic cop&quot; like MK-7 to ensure that extra calcium is managed properly around the clock.

What is the difference Vitamin K2 MK-7 & Mk-4?

While our Vitamin D3 & K2 formula is designed with MCTs and ox bile to allow for use on an empty stomach, some individuals may still experience occasional nausea. This is most often attributed to the 20 mg of Zinc in the 10,000 IU and the 10 mg of Zi

While our Vitamin D3 &amp; K2 formula is designed with MCTs and ox bile to allow for use on an empty stomach, some individuals may still experience occasional nausea. This is most often attributed to the 20 mg of Zinc in the 10,000 IU and the 10 mg of Zinc in the 5,000 IU capsules.&#xA0;The Zinc-Nausea Connection&#xA0;Zinc is a highly effective mineral for immune support, but it can be sensitive to the stomach lining when there is no food present to buffer its absorption.&#xA0;<ul><li style="font-size: 16px;">Gastric Irritation:&#xA0;On an empty stomach, zinc can interact directly with the gastric mucosa (stomach lining), which may trigger a brief wave of nausea or a &quot;queasy&quot; feeling.</li><li style="font-size: 16px;">The Chelated Difference:&#xA0;While we use a high-quality form of zinc to minimize this effect, individual sensitivity varies.</li><li style="font-size: 16px;">Detoxification Response:&#xA0;In some cases, zinc can stimulate a mild cleansing effect in the gut, which the body sometimes misinterprets as nausea.</li></ul>How to Avoid Nausea&#xA0;If you find yourself sensitive to the zinc content, Dr. Berg recommends the following adjustments:&#xA0;<ol><li style="font-size: 16px;">Take with a Small Snack:&#xA0;Even a few bites of healthy fat (like a piece of cheese, half an avocado, or a few nuts) can provide enough of a buffer to eliminate the nausea without disrupting your fast.</li><li style="font-size: 16px;">Take at the End of a Meal:&#xA0;Moving your supplement to the end of your largest meal is the most effective way to ensure smooth digestion.</li><li style="font-size: 16px;">Stay Hydrated:&#xA0;Drinking a full glass of water with the capsule can help dilute the mineral concentration in the stomach.</li></ol>

Why do I feel nauseous when taking Vitamin D3 & K2?

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Potassium Requirements and Healthy Keto® Food Sources

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Omega-3 Cod Liver Fish Oil

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