Immune bundle: vitamin D3 + K2, selenium, zinc & breathing tea

The bundle contains four products that are also sold individually:

• vitamin D3 + K2: 120 capsules. One capsule contains 60 µg vitamin D3 (1,200 % of the reference intake) and 75 µg vitamin K2 (100 %).
• selenium capsules: 100 capsules. One capsule contains 200 µg selenium from sodium selenite (364 %).
• Flora Plus: 60 capsules. Two capsules contain 10 mg zinc (100 %), nine bacterial strains, L-glutamine, L-carnosine and acacia fibre.
• breathing tea (Atemtee): 50 g herbal tea blend of lemon balm, lemongrass, thyme, spearmint, olive leaves, mullein, rosemary, elderflower and mallow flowers.

The vitamin D3 + K2 product page does not state a fixed daily amount; the figures refer to one capsule.

Yes, no unfavourable interaction between these three is known. According to the labels: selenium 1 capsule a day (lasts 100 days), Flora Plus 2 capsules a day (30 days). The vitamin D3 + K2 product page states no daily amount; at one capsule a day, the tub lasts 120 days. Breathing tea: 1–2 teaspoons per cup with boiling water, steep for 5–8 minutes.

Vitamin D and K2 are fat-soluble and are usually absorbed better with a meal; many people find zinc easier on the stomach with a meal. What else you take matters: many multivitamin, hair and thyroid supplements also contain selenium, zinc or vitamin D, and the amounts add up.

Bought individually, the four products cost €102.40 together (Flora Plus €49.50, vitamin D3 + K2 €27.50, selenium €15.90, breathing tea €9.50). The bundle costs €97.30, so you save €5.10 or 5 %. Shipping within Germany is free from an order value of €50.

The phrase “strengthens the immune system” is not authorised for foods. For vitamin D, selenium and zinc, the same sentence is authorised in each case, because the daily amounts provide at least 15 % of the reference intake:

• Vitamin D contributes to the normal function of the immune system.
• Selenium contributes to the normal function of the immune system.
• Zinc contributes to the normal function of the immune system.
• Vitamin D contributes to the maintenance of normal bones.
• Vitamin K contributes to normal blood clotting.
• Selenium contributes to normal thyroid function.
• Selenium and zinc contribute to the protection of cells from oxidative stress.

There are no authorised claims for the bacterial cultures or the tea herbs, including on the airways or colds.

A meta-analysis of 43 trials found a slightly lower risk of acute respiratory infections with vitamin D; the effect was seen mainly with daily amounts of 10 to 25 µg, not with large single doses (PubMed 33798465). A Cochrane review on zinc found little or no effect on the risk of catching a cold (PubMed 38719213). Another Cochrane review found somewhat fewer upper respiratory infections with bacterial supplements, with low to moderate certainty of evidence (PubMed 36001877).

The trials used different amounts and strains from this bundle. High fever, shortness of breath or symptoms lasting longer than about ten days should be assessed by a doctor.

Yes, for four nutrients. The daily amounts compared with the maximum amounts proposed by the German Federal Institute for Risk Assessment (BfR) for food supplements:

• Vitamin D: 60 µg per capsule, proposal 20 µg (BfR); EFSA tolerable upper intake level for total intake 100 µg.
• Vitamin K2: 75 µg per capsule, proposal 25 µg (BfR).
• Selenium: 200 µg per capsule, proposal 40 µg (BfR); EFSA upper level 255 µg.
• Zinc: 10 mg per daily portion of Flora Plus, proposal 6.5 mg (BfR); EFSA upper level 25 mg.

Together with food, total selenium intake can come close to the EFSA upper level. Whether these amounts make sense for you, and for how long, is best discussed with the ORY expert team or with your doctor or naturopath.

Caution is needed in these cases:

• Anticoagulants: vitamin K can weaken the effect of vitamin K antagonists such as phenprocoumon or warfarin. Only after speaking to a doctor.
• Thyroid disease: selenium only after advice.
• Zinc can reduce the absorption of certain antibiotics and osteoporosis medicines; a gap of a few hours is then usual.
• Flora Plus contains live bacteria: with a severely weakened immune system or serious illness, only after speaking to a doctor.
• With kidney stones, raised calcium levels or kidney disease, vitamin D only after speaking to a doctor.
• If you are allergic to any of the tea plants, do not use the tea.

Signs of too much selenium can include garlic-smelling breath, brittle nails and hair loss. If you take medicines, are pregnant or breastfeeding, talk with the ORY expert team or with your doctor or naturopath beforehand.

The vitamin D3 test measures your vitamin D level in the blood. The whole-blood mineral analysis shows minerals and trace elements in whole blood, including selenium and zinc. Prevent 360 gives a broader overview of your nutrient status. Because the bundle is above the proposed maximum amounts for vitamin D, selenium and zinc, a measured value beforehand makes particular sense.

A lab report on its own is not a recommendation. Whether you supplement, and how much, is something you decide with the ORY expert team or with your doctor or naturopath.