Although we have never known anyone to become ill from taking too many Vegums, we always advise that you stick to the recommended dose and seek the advice of a doctor or pharmacist if you know someone who has taken too many of any product.
The Multivitamin for Vegans contains mainly water-soluble vitamins, which are easily removed from the body in urine if too much is consumed so these shouldn’t cause a problem. The only exception to this is vitamin D, which is fat-soluble and if taken at a high dose for a prolonged period of time can become harmful to the body. Taking 60,000 IU of Vitamin D a day for several months has been shown to cause toxicity. This is the equivalent of taking 150 Vegums every day for several months. https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/vitamin-d-toxicity/faq-20058108
Our Iron gummies contain 7mg each, so it’s important that you stick to the recommended dose as iron is stored in the body. According to The Department of Health and Social Care, you should not regularly be supplementing more than 17mg of iron per day. The tolerable upper limit for a one-off intake is slightly higher at 20mg, however this level of dosage is when you might see side-effects such as constipation, nausea and stomach pain. Extremely high doses can be fatal, so keep out of reach of children.
It is hard to define a tolerable single upper limit for Omega-3, but prolonged high intake of fatty acids (DHA, EPA or ALA) can increase risk of cardiovascular disease. It is recommended that supplemental intakes of DHA alone up to about 1 g/day, or 5g/day of DHA and EPA combined, do not raise safety concerns for the general population. It is therefore advised not to regularly exceed this. The dietary recommendations for EPA and DHA based on cardiovascular risk considerations for adults are between 250 and 500 mg/day is sufficient.