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Magnesium is the most-searched mineral supplement in the UK right now. For good reason. The symptoms of insufficiency read like a checklist of things everyone in 2026 has quietly accepted as normal: tired, stressed, sleeping badly, getting cramps. It's worth...

Iron deficiency is the most common nutritional deficiency in UK women. Around 25% of women of reproductive age are iron deficient or anaemic. This is the one area where we'll be straight with you: gummy supplements mostly fall short on...

Perimenopause is one of the most nutritionally demanding stages of a woman's life and one of the most under-supported by the supplement industry. HRT is a legitimate and often excellent option. But nutrition plays a real supporting role regardless of...

Your 30s aren't when everything falls apart. But they are when the gap between what you eat and what your body needs starts to actually show up. The habits you build this decade pay dividends for the next 30 years....

Walk into any pharmacy supplement aisle and you'll see the same thing: men's formulas repackaged in pink, price bumped up, new name slapped on. Most of the time that is genuinely what you're buying. We built Guudies because we were...

Vitamin D deficiency affects one in five UK adults according to NHS data. For vegans, there is an additional consideration that most supplement marketing glosses over: not all Vitamin D supplements are vegan, and not all vegan D supplements are...