Recommended dose of vitamin e, and whether there is a limit as to how much vitamin e one should take daily

The recommended daily dosage for vitamin D generally ranges from 1,000 to 2,000 IU (International Units) for most people, as stated by Andrew Huberman on the Huberman Lab. This dosage is considered safe and effective for maintaining adequate levels of vitamin D in the body.

However, some individuals may require higher doses to achieve optimal levels, particularly if they have specific deficiencies. For example, some may need up to 5,000 to 10,000 IU per day, especially if blood tests indicate a deficiency 1.

As for upper limits, it's important to be cautious. The upper tolerable intake for vitamin D is set at 4,000 IU per day by health authorities, but exceptionally high intakes (e.g., 6,000 to 8,000 IU) can cause gastric distress and may not significantly improve immunity or reduce the risk of infections, such as colds or flus 2 3.

Overall, regular blood testing to monitor vitamin D levels is advisable for personalized recommendations. Always consult with a healthcare provider before starting high-dose vitamin supplementation.

High intake of vitamin E poses several risks, especially when consumed as a supplement. Here are key points regarding the dangers of excessive vitamin E consumption:

1. Increased Bleeding Risk: High doses of vitamin E can interfere with blood clotting, increasing the risk of hemorrhage. This is particularly concerning for individuals taking anticoagulant medications or those with bleeding disorders 1.

2. Potential for Prooxidative Effects: While vitamin E is recognized for its antioxidant properties, excessive intake may paradoxically lead to prooxidative effects. This means that instead of protecting cells, high levels may contribute to oxidative stress in some situations 1.

3. Outcomes in Cardiovascular Health: Some studies suggest that high doses of vitamin E do not improve cardiovascular health and might even be associated with adverse outcomes. This is supported by evidence indicating that routine supplementation is not beneficial in populations with adequate dietary intake 1.

4. Consultation with Healthcare Providers: It is crucial to discuss any vitamin E supplementation with healthcare professionals, especially when considering dosage above the recommended dietary allowance (RDA), which is generally around 15 mg (or 22.4 IU) per day for adults 1.

Overall, while vitamin E is essential for health, moderation is key, and higher intakes should be approached with caution.