Supermarket own brand. They are all only as strong as the amount of active ingredient - for example, Holland and Barrat 1000mg Vitamin C tablets will be the same strength as Tesco 1000mg Vitamin C tablets.
(90 chewables £10 H&B; £5 Tesco)
Are you deficient in vitamins? My GP has stated in the past that you should only take them if you are deficient in them - and that is diagnosed by blood tests
The NHS recommends that everyone takes Vit D 10mg throughout the winter, and all year if they are housebound or get very little sunlight on their skin.
If you do decide to buy vitamin supplements, it's important to know how much you need/want to take - then compare with the amount stated (per pill) on the label.
You'll find that the cheaper ones contain less of the vitamin per pill, so you need to take 2 (or 3 or 4) per day...so they're not cheaper at all!
Best to see if you really need any specific vitamin before you buy any.
That's what I meant - micrograms. We take 4000iu whatever that is. The practice nurse recommended the ones we buy from Amazon.
Amazon.co.uk User Recommendation Dirt cheap
The Tesco Vit C I mentioned are exactly the same strength as the H&B ones, so they really are half the price :) It pays to shop around
Like Barry, I take Vitamin D supplements in the winter (and, indeed, for much of the rest of the year too, do to my semi-nocturnal lifestyle). I do so because of the NHS recommendation in that respect.
However I agree with Helen (and her GP) that other vitamin supplements are a waste of money (and, in some circumstances, actually harmful) for most people.
To return to the original question, I buy supermarket own-brand Vitamin D tablets. They're just as good as any others.
If you get vitamin D measure its D3. Also, 4,000iu is a maintenance dosage. Fine if you have been in the sun every day for the last 6 months. Best to double that in winter. D is the best supplement to take in winter...better than vit c.