Key takeaways:The NHS recommends that "everyone should consider taking a daily supplement containing 10 micrograms (400IU) of vitamin D during autumn and winter”GQ's top pick of the best Vitamin D supplements includes Protein Works Vitamin D3 for its value, Heights Vitals for the best multivitamin with Vitamin D and Thorne for athletesIf the best vitamin D supplements aren't already part of your daily supplement stack, there’s a decent chance they should be. This is classed as the end of September to late March or early April, with our body really only getting Vitamin D from our diets during that time. In fact, overdoing it with vitamin D can be quite dangerous, says Dr. Li. With that being said, here are some of the best vitamin D supplements to choose from…Best value vitamin D supplement: Protein Works Vitamin D3 Super StrengthStrength: 2500iu2500iu Pills per bottle: 180 tabletsIt's hard to find better value than £0.05 per vitamin D tablet, especially when this bottle includes 180 (aka a 6 months supply) all for less than £10 in the current Protein Works sale. Best vitamin D for athletes: Thorne Vitamin D-5,000Vitamin D-5,000 - NSF Certified for Sport £12.59 Healf