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10 Best calcium supplement

Welcome to our top 10 product reviews for calcium supplement. We've scoured the market to bring you the best of the best, with products ranging from a 7.1 score up to a whopping 9.8 score!

Updated November 2025
2
Calcium Magnesium Zinc & Vitamin D Supplement - 365 Vegetarian Tablets - High Strength Osteo Complex with Selenium, Copper, Manganese & Boron - 6 Month Supply - Nu U Nutrition
9.6
Excellent

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Calcium Magnesium Zinc & Vitamin D Supplement - 365 Vegetarian Tablets - High Strength Osteo Complex with Selenium, Copper, Manganese & Boron - 6 Month Supply - Nu U Nutrition

Main Highlights

HIGH STRENGTH FORMULATION - Each tablet delivers 100% or more of your daily requirements for calcium, magnesium, zinc, copper, and vitamin D3. With 800 mg of calcium, 400 mg of magnesium, 10 mg of zinc, 1 mg of copper, and 400 IU of vitamin D3, the formula is designed to optimise nutrient synergy - most notably, vitamin D contributes to the normal absorption and utilisation of calcium.* *EFSA approved claim

6 MONTH SUPPLY - 365 TABLETS - Our market leading 365 Calcium, Vitamin D3, Zinc and Magnesium Complex supplement gives amazing VALUE providing a full 6 months supply. This is TWICE the amount of many leading supplements. No need to remember to reorder every month more than 26 weeks supply.

MIGHTHY COMPLEX - Calcium and magnesium contribute to normal muscle function and help maintain normal bones and teeth. Vitamin D supports the normal absorption of calcium, contributes to normal blood calcium levels, and helps maintain normal bone structure. Zinc supports the maintenance of normal bones, hair, nails, and skin, and contributes to the normal function of the immune system. Zinc also protects cells from oxidative stress.* *EFSA approved claim

VEGETARIAN FORMULA - Nu U Nutrition's Calcium, Magnesium, Zinc & Vitamin D3 Complex tablets are suitable for vegetarians. Produced in the UK to high manufacturing standards, this formula is already trusted by thousands of happy Nu U Nutrition customers!

THE NU U NUTRITION STORY - TRUSTED SUPPLIER OF NUTRITIONAL SUPPLEMENTS - Starting as a family business in 2014, we’ve expanded to offer a diverse range of high-quality supplements designed to support different lifestyles. Our mission is to make wellness simple, with premium ingredients that cater to your daily nutritional needs—whether for general health or targeted goals.

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9.6
Excellent
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4
Nutravita Calcium Magnesium & Zinc with Vitamin D D3 Copper Selenium Boron and Manganese - 365 Tablets
9.2
Very Good

Save £5.55

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Nutravita Calcium Magnesium & Zinc with Vitamin D D3 Copper Selenium Boron and Manganese - 365 Tablets

Main Highlights

High Strength Supplement – Each daily serving (2 tablets) of our supplement contains Calcium 800mg (400mg per tablet), Magnesium 360mg (180mg per tablet), Zinc 5mg (2.5mg per tablet) & Vitamin D3 1000iu (500iu per tablet). Blended with Copper, Manganese, Selenium and Boron for added benefits. Our supplement provides a 6 month supply (365 vegetarian tablets). To ensure you receive 100% of your daily Calcium NRV (recommended daily intake), we have split the serving over 2 tablets.

Why Take Calcium, Magnesium, Zinc & Vitamin D? - Calcium, Magnesium and Zinc are three important minerals for the body, which combined with Vitamin D are crucial in the maintenance of normal bones & teeth, immune system, normal muscle function, and reduction of tiredness & fatigue. Claims substantiated by EFSA (European Food Safety Authority). Not all benefits are guaranteed, for best effects our supplements should be taken regularly over a longer period of time alongside a healthy lifestyle.

How to Take Our Supplement - For the most effective results, we recommend taking 2 tablets per day, covering at least 100% of your Calcium Daily NRV. The 22mm x 10mm oval tablets have been designed to be taken with water, a meal, healthy smoothie or shake. If you find the tablets large, you can crush the tablet and sprinkle over food to ingest. For more recommendations on taking this supplement, please do get in touch with our team and we will endeavour to help you!

Formulated by Nutritionists: Nutravita's products are developed with a team of in-house nutritionists to deliver trusted, effective formulations. We include ingredients with proven benefits to support your wellbeing every day. We are here for your daily support for a wide range of health goals.

What is The Story Behind Nutravita? - Nutravita is a recognised and trusted Vitamins & Supplements brand providing thousands of customers across the world for over 6 years. Our high quality products are manufactured, batch tested and certified in the UK, and safeguarded by the highest manufacturing standards in the world (GMP, BRC). We have a dedicated team of pharmacologists, chemists and research scientists working to source the finest and most beneficial ingredients.

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9.2
Very Good
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Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

6
Calcium – Together Health – Seaweed-Based Calcium – 72 Trace Minerals – Vegan Friendly – Made in The UK – 60 Vegecaps
8.8
Good

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Calcium – Together Health – Seaweed-Based Calcium – 72 Trace Minerals – Vegan Friendly – Made in The UK – 60 Vegecaps

Main Highlights

SEAWEED-BASED CALCIUM: Our calcium is derived from 100% seaweed, sustainably harvested from the pristine waters off Iceland. Seaweed absorbs trace minerals from the surrounding seawater. Eventually, those minerals calcify to create a sustainable natural source of whole-food calcium.

72 TRACE MINERALS: We use seaweed as our source of calcium, which means it comes to you complete in a marine multi-mineral complex providing bioactive calcium along with 72 other trace minerals. Our bodies are able to recognise and absorb minerals more easily when they’re taken from natural and complete sources.

FREE FROM OCEAN CONTAMINANTS: Our seaweed is harvested from the ocean, so we take steps during the manufacturing process to purify the seaweed before conducting industry-recognised testing. And reject any batches that don’t pass, of course.

CLEAN, PURE, NATURALLY EFFECTIVE: At Together, we make products you can trust - and we’re proud of that. Our entire range is certified vegan and free from artificial additives and processing aids, so you only ever get the purest possible product. We use real ingredients, and that’s how we make nutrients that are gentle, easily absorbed and effective. Your body will love them.

SAFE & ALLERGEN-FREE: Our Marine Calcium is third-party batch tested safe for heavy metals, microbes & pathogens. It is free from wheat, yeast, gluten, soya, lactose, added sugars, additives, colourings, flavourings, preservatives and GMOs. We like to keep things natural.

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8.8
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7
Calcium and Vitamin D3 Tablets - Calcium Supplement - 120 High Strength Tablets with Vitamin D3 - Made in The UK by New Leaf Bone & Muscle Health
8.6
Good

Save £1.65

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Calcium and Vitamin D3 Tablets - Calcium Supplement - 120 High Strength Tablets with Vitamin D3 - Made in The UK by New Leaf Bone & Muscle Health

Main Highlights

OPTIMIZE YOUR CALCIUM INTAKE - New Leaf’s Calcium Tablets, enriched with Vitamin D3, deliver 1000mg of calcium per serving to help meet your daily requirements. Calcium contributes to normal muscle function and neurotransmission, supports the normal function of digestive enzymes, and is essential for the maintenance of healthy bones and teeth. With 120 tablets providing a 2-month supply, this supplement is a convenient way to ensure your body gets the calcium it needs.

SUPPORT FOR BONES AND TEETH - Calcium plays a critical role in maintaining the structure and strength of bones and teeth. By pairing it with Vitamin D3, this formula ensures optimal calcium absorption and utilization, further supporting skeletal health. Whether you're aiming to maintain strong bones or support your overall calcium levels, this supplement is designed to provide the nutrients necessary for your daily wellness routine.

ENRICHED WITH VITAMIN D3 - Vitamin D3 is included in our formula to enhance the absorption of calcium, ensuring your body can efficiently utilize this essential mineral. This combination supports not only bone health but also muscle function and proper neurotransmission. With a two-month supply in every bottle, our Calcium Tablets are a reliable addition to your wellness routine, helping you stay on top of your daily calcium and Vitamin D3 needs.

SAFETY & QUALITY - To uphold the highest standards of safety and quality, our products undergo post-production testing for heavy metals and other unwanted compounds, ensuring full compliance with international regulations. Once testing is complete, products are bottled and packaged in BRC Grade AA certified facilities, guaranteeing that our rigorous quality standards are reliably maintained and delivered to you.

Why Choose New Leaf Products? As a family-owned business with extensive experience in formulating and producing our unique range of over 100 vitamin and mineral supplements, we are dedicated to upholding the highest standards of safety and quality. We prioritise environmental sustainability and social responsibility, donating a portion of our sales to global causes. Join our community of over 2 million satisfied customers, where our customers are always our top priority.

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8.6
Good
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