Vitamin World Zygest Multi-Enzyme Review

Product Focus: Blood PressureAlso covers:DigestionHeartRanked among:Multivitamins
Tier ⓘ
Tier 3 · Rank 6
Tier 3 · Reviewed. Strong review agreement, with limited or early support from human studies. Rank 6 within Tier 3 for Blood Pressure; 19 of 60 overall. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
56 /100
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
95% of 4,200
Biohacker Mentions
0 of 10

Study, Trial or Testing Result Summary

Members Only42 human studies · 14 improved
42 human studies14 improved21 no effect213,572 people studied

This is a digestive enzyme product. Its main ingredient, the Zygest enzyme blend, has no human studies on blood pressure, and the label does not list the blend's contents or amounts. The calcium here is far below the dose that helped in studies, about 141 milligrams a day versus around 1 gram. In pregnant women, calcium lowered the risk of high blood pressure in pregnancy and of preeclampsia in large reviews [1][2], though a large trial using 2 grams daily found no benefit [3]. In people with normal blood pressure, calcium lowered blood pressure by only about 1 to 1.5 points [4][5]. In adults with high blood pressure, the top number fell by about 2.5 points, but the evidence was judged weak [6]. Phosphorus does not appear to help. A review found no consistent link between phosphorus and blood pressure [7], and a high dairy diet rich in phosphorus did not change blood pressure [8]. In one small trial, extra phosphate raised blood pressure and pulse in healthy young adults [9]. Animal and cell studies are never counted.

See all 42 studies →Hide the studies

Review Totals and Summary

Members Only4,200 reviews · 95% positive
4,200 reviews · Google Shopping 4,200
95% positive0% neutral5% negative

Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.

Biohacker Summary

Members Only0 of 10 recommend it
0 of 10 biohackers on our panel recommend it

The main ingredient here is calcium, with phosphorus listed alongside it, and the panel is split on calcium in supplement form. Most of the panel backs getting enough calcium for bone health, with a few giving doses of 1,000 to 1,200 milligrams a day, but four of them warn against supplements and prefer food such as sardines, dairy or leafy greens, citing heart risk or weak results for bones. Those who are open to supplements name calcium citrate or calcium carbonate, though one calls carbonate the worst source, and one takes a calcium and magnesium pill. Others advise pairing calcium with vitamin D, vitamin A and K2, and keeping about two parts calcium to one part magnesium, while one says the two should not be taken together; one person told people to stop calcium supplements. Only two of the ten spoke about phosphorus, and both treated it as a bone-building mineral that works with calcium.

See all 10 biohackers →Hide the biohackers
  • Dr. Eric Berg · Phosphorus · neutral
    • 8 Nov 2026 · neutral · Facebook ↗
      Lists phosphorus as an ingredient found in sardines.
    • 8 Nov 2026 · Calcium · neutral · Facebook ↗
      States that one can of sardines contains 382 mg of calcium.
    • 7 Nov 2026 · Calcium · warns · Facebook ↗
      Warns against calcium supplements, citing studies that link them to a higher risk of heart attack, especially in postmenopausal women, and suggests getting calcium from dairy instead.
    • 6 Nov 2026 · Calcium · recommends · Podcast ↗
      Recommends focusing on calcium to support stronger bones if a neck hump is associated with osteoporosis.
    • 31 Oct 2026 · Calcium · warns · YouTube ↗
      Warns against calcium carbonate, calling it limestone and the worst source of calcium, stating it takes 12 steps to be converted in the body and is like eating rocks.
    • 25 Oct 2026 · Calcium · warns · YouTube ↗
      Warns that bone loss cannot be fixed with just calcium, as bone is primarily collagen with other essential minerals.
    • 10 Oct 2026 · Calcium · warns · Podcast ↗
      Dr. Berg includes calcium carbonate among the synthetic supplements to avoid.
    • 3 Oct 2026 · Calcium · warns · YouTube ↗
      Warns against calcium carbonate, also known as limestone, stating that while it lowered hip fractures in a study, it also increased kidney stones and is not good for arteries, requiring the body to work hard to use it.
    • 27 Sep 2026 · Calcium · neutral · X ↗
      Notes that tannins in tea bind calcium, blocking its absorption.
    • 10 Sep 2026 · Calcium · neutral · Facebook ↗
      Indicates that horizontal thin white lines near the base of the nails are indicative of low calcium.
    • 4 Sep 2026 · Calcium · warns · Facebook ↗
      Warns that calcium carbonate can build up in the arteries and kidneys and increase the risk of a heart attack.
    • 19 Dec 2025 · recommends · Podcast ↗
      Recommends increasing phosphorus for best kidney health.
    • 18 Dec 2025 · warns · YouTube ↗
      Warns that the damaging phosphorus is found in junk food like Coke, as it is absorbed 100%, unlike phosphorus from other foods.
    • 9 Jun 2025 · neutral · YouTube ↗
      Notes that Parmigiano Reggiano contains a high amount of phosphorus for bones.
  • Siim Land · Calcium · neutral
    • 30 Sep 2026 · neutral · X ↗
      Lists dairy and sardines as sources of Calcium.
    • 14 Aug 2026 · neutral · X ↗
      Notes that Boron reduces calcium/magnesium loss.
    • 14 Feb 2026 · recommends · TikTok ↗
      Recommends a high calcium intake for bone health.
    • 28 Dec 2025 · warns · YouTube ↗
      Places calcium supplementation in the 'bad tier' due to its association with increased cardiovascular events, recommending dairy or bones as easier ways to get calcium, though it can be useful for postmenopausal women with low bone density.
    • 6 Oct 2025 · neutral · YouTube ↗
      Mentions that eating enough calcium matters for bone density, but states that it alone won't transform bone density.
    • 8 Sep 2025 · warns · TikTok ↗
      Warns that calcium is linked to a higher risk of heart disease, though people with low calcium status and intake can take it safely.
    • 8 Sep 2025 · warns · YouTube ↗
      Warns that calcium supplements increase the risk of heart disease by raising blood calcium levels too high, leading to hypercalcemia and more calcium being stored in the arteries, and also increase the risk of arrhythmias.
    • 16 Aug 2025 · warns · YouTube ↗
      Warns against calcium supplementation for most people due to its association with increased cardiovascular events, but notes it can be useful for postmenopausal women with low bone density who don't consume dairy.
    • 16 Aug 2025 · neutral · Podcast ↗
      Discusses Calcium as a supplement.
    • 14 Jul 2025 · recommends · YouTube ↗
      Recommends consuming calcium from dairy, tofu, leafy greens, and bones, as it is a key nutrient required for ATP synthase in mitochondrial energy production.
    • 22 Nov 2024 · Phosphorus · warns · YouTube ↗
      Warns that a diet too high in phosphorus, especially in the absence of sufficient magnesium, can damage kidneys and lead to kidney disease.
    • 1 Aug 2024 · Phosphorus · uses · YouTube ↗
      Attributes an improvement in his kidney function to a reduction in phosphorus intake, which in excess can negatively affect kidney function.
    • 26 Jan 2024 · Phosphorus · warns · TikTok ↗
      Warns that phosphorus in excess is bad.
    • 16 Jan 2024 · Phosphorus · warns · YouTube ↗
      Warns that consuming too much phosphorus can accelerate the decline in kidney function, promote vascular calcification, heart disease, and increase the risk of mortality in both healthy and sick people.
  • Thomas DeLauer · Calcium · neutral
    • 18 Sep 2026 · neutral · Facebook ↗
      Notes that milk contains 120mg of calcium, while sardines contain 351mg, highlighting a 3x difference.
    • 12 Aug 2026 · recommends · YouTube ↗
      Recommends getting calcium, along with vitamin D, zinc, and magnesium, from foods like sardines, as they are important for inflammatory pathways in the gut.
    • 30 Jun 2026 · neutral · YouTube ↗
      Explains that eating sardines with their soft bones provides a serious hit of calcium, which is a perfect combination for bones and may contribute to satiety.
    • 19 Jun 2026 · neutral · YouTube ↗
      Mentions that magnesium and calcium should not be taken together as they cancel each other out.
    • 13 Jun 2026 · warns · YouTube ↗
      Tries to get multivitamins without calcium or with a low amount, as he believes supplemental calcium impacts the absorption of other vitamins and minerals and is not as beneficial as hyped. He cautions against it for most people due to the risk of coronary artery calcification.
    • 12 Jun 2026 · recommends · YouTube ↗
      Recommends getting calcium from dairy sources like milk, yogurt, kefir, and cheese in the morning to support neurotransmitter synchronization crucial for deep and REM sleep, noting that low dietary calcium is linked to insomnia.
    • 20 May 2026 · warns · YouTube ↗
      Warns that calcium competes with magnesium for the same absorption channels, advising to separate magnesium intake from calcium supplements or dairy by at least an hour or two.
    • 2 May 2026 · recommends · YouTube ↗
      Recommends providing the body with adequate dietary calcium, not a calcium supplement, to ensure a clean, strong spark for efficient insulin release.
    • 10 Apr 2026 · warns · YouTube ↗
      Warns that calcium and magnesium should not be taken together as they cancel each other out, though some products use delayed absorption to mitigate this.
    • 22 Mar 2026 · warns · YouTube ↗
      Warns that most people consume too much calcium relative to magnesium, which can disrupt the balance needed for proper bodily function, comparing it to an electrical circuit.
    • 12 Apr 2022 · Phosphorus · recommends · YouTube ↗
      States that phosphorus is extremely rich in turkey and is a critical cofactor for anabolism and protein synthesis, which is imperative at the end of a fast to rebuild or protect muscle tissue.
    • 27 Mar 2022 · Phosphorus · recommends · YouTube ↗
      Explains that phosphorus is exceptionally high in turkey and is important for proper protein synthesis after a longer fast, as phosphorus levels tend to decline.
    • 26 May 2021 · Phosphorus · recommends · YouTube ↗
      Recommends restoring phosphorus levels after fasting, which can be obtained from pork jerky.
    • 7 Aug 2020 · Phosphorus · recommends · YouTube ↗
      Suggests adding phosphorus with the break fast meal if one is really trying to keep electrolytes balanced.
  • Dr. Mark Hyman · Calcium · recommends
    • 20 Aug 2026 · recommends · YouTube ↗
      Notes that calcium is in bones but is also essential for nerves, muscles, and the heart, and low levels can affect muscle function and heart rhythm.
    • 17 Jun 2026 · neutral · YouTube ↗
      States that green leafy vegetables are great sources of calcium.
    • 3 Nov 2025 · neutral · Podcast ↗
      Notes that calcium needs are lower than advertised and that stress, soda, and excess sugar can drive calcium loss.
    • 17 Sep 2025 · warns · YouTube ↗
      Does not prescribe calcium supplements at all, teaching people to get it from whole foods instead, because calcium supplements don't work for building bones or preventing fractures, and it's bone quality, not density, that matters.
    • 14 May 2025 · warns · YouTube ↗
      Warns that acid blockers inhibit calcium absorption.
    • 2 Apr 2025 · recommends · YouTube ↗
      Lists calcium as another important nutrient that people can be tested for and measured.
    • 12 Mar 2025 · warns · YouTube ↗
      States that high doses of calcium supplementation in the elderly were not really impacting bone density, as osteopenic patients still became osteoporotic.
    • 29 Nov 2024 · warns · YouTube ↗
      Warns that meds (meds) impair the absorption of calcium, which increases the risk of hip fractures and osteoporosis.
    • 15 Nov 2024 · recommends · YouTube ↗
      Recommends calcium citrate, about 600 milligrams a day, for bone health, noting that much can also be obtained from diet through leafy greens, sesame seeds, tahini, and chia seeds.
    • 27 Sep 2024 · warns · YouTube ↗
      Dr. Hyman notes that while calcium deficiency is not common in terms of blood levels, insufficient intake can lead to osteoporosis as the body pulls calcium from bones. He advises caution with calcium supplementation due to potential heart issues.
    • 24 May 2023 · Phosphorus · neutral · YouTube ↗
      States that phosphorus is less of an issue for most people because it's in food.
  • Dr. Rhonda Patrick · Calcium · neutral
    • 29 Jun 2026 · neutral · Facebook ↗
      Mentions that kale delivers calcium, a micronutrient many diets fall short on.
    • 9 Jan 2026 · neutral · Facebook ↗
      Notes additional gaps in calcium.
    • 3 Jul 2024 · warns · YouTube ↗
      Reports that alcohol use disorder is associated with a 20-50% greater prevalence of Calcium deficiency.
    • 9 Oct 2015 · neutral · YouTube ↗
      Around 38% doesn't meet the requirement for calcium.
    • 11 Feb 2015 · uses · YouTube ↗
      Takes a calcium-magnesium pill because he believes people tend to be short of both and that the body cares about the ratio of these similar molecules.
    • Date not recorded · recommends · Website ↗
      States that 1,000 milligrams of calcium per day is the recommended intake for bone density, and supplementation is an option if this requirement is not met.
    • Date not recorded · uses · Website ↗
      Takes a calcium, vitamin K2, and vitamin D combination supplement in the morning, providing about 600 mg of calcium and another 1,000 IUs of vitamin D.
    • Date not recorded · neutral · Website ↗
      Dr. Rhonda Patrick discusses calcium needs.
  • Dave Asprey · Calcium · neutral
    • 16 Jun 2026 · neutral · Facebook ↗
      Notes that when energy intake is too low for training demand, nutrient intake often falls short, especially for calcium, which is associated with reduced bone health.
    • 12 Jun 2026 · neutral · Instagram ↗
      Explains that calcium provides the raw material for bones, but it isn't a standalone input and needs a whole system to be effective.
    • 12 Jun 2026 · neutral · X ↗
      Notes that people take calcium for their bones.
    • 14 May 2026 · warns · YouTube ↗
      Warns that taking calcium without vitamin D, A, and K2 can lead to calcium going into tissues, causing bone spurs and other issues, and recommends a two-to-one ratio of calcium to magnesium.
    • 30 Dec 2025 · recommends · YouTube ↗
      Recommends taking calcium citrate during a high oxalate meal to bind the oxalate in the gut.
    • 21 Oct 2025 · neutral · YouTube ↗
      Notes that people often take calcium for bone health.
    • 5 Aug 2025 · warns · YouTube ↗
      Believes calcium supplements are overrated, as most people need more vitamin K2 and vitamin D instead.
    • 2 Aug 2024 · recommends · YouTube ↗
      Advises taking iron and calcium separately because they will bind together.
    • 22 Apr 2024 · uses · YouTube ↗
      Takes extra calcium to help deal with the burden when eating chocolate or anything with higher levels of oxalates.
    • 25 Jan 2024 · neutral · YouTube ↗
      Discusses calcium citrate as a counter to oxalate crystals, specifically when consumed through dairy, but questions if it's the primary form of calcium in dairy.
  • Ben Greenfield · Calcium · neutral
    • 9 May 2026 · neutral · YouTube ↗
      Is considering whether he needs a calcium supplement because lead can displace calcium in bones, affecting bone strength.
    • 6 May 2026 · neutral · X ↗
      Mentions calcium as a common deficiency.
    • 12 Apr 2026 · recommends · Facebook ↗
      Recommends adequate intake of calcium for bone strength.
    • 13 Feb 2026 · uses · YouTube ↗
      Is using calcium chloride mixed with PRP before injecting for the P-shot.
    • 22 Nov 2025 · stopped · YouTube ↗
      Advises people to stop taking calcium supplements as part of the Root Cause Protocol.
    • 21 Aug 2025 · warns · Facebook ↗
      Warns that in high doses, calcium without the right cofactors can raise cardiovascular risk by contributing to arterial calcification instead of bone strength, and may increase the risk of osteoporosis.
    • 3 Apr 2025 · warns · YouTube ↗
      Explains that 10X separates calcium and zinc into different micro beads, releasing them at different rates and locations in the digestive tract to prevent competition and optimize absorption.
    • 26 Dec 2024 · neutral · TikTok ↗
      Covers calcium as a key supplement for kids.
    • 11 Apr 2024 · warns · YouTube ↗
      Warns of calcium deficiency on a carnivore diet, as there is not an appreciable amount in meat, and recommends eating fish with bones or taking a calcium supplement or bone mineral matrix.
    • 17 Oct 2020 · warns · YouTube ↗
      Notes that excess calcium intake can contribute to calcium buildup in the arteries.
    • 28 Jun 2017 · Phosphorus · recommends · Podcast ↗
      Ben recommends taking phosphorus between meals.
  • Peter Attia · Calcium · recommends
    • 9 Jul 2025 · recommends · YouTube ↗
      Recommends calcium as one of the 'big three' micronutrients for bone health, suggesting a daily intake of 1,000 to 1,200 milligrams, which can be supplemented with calcium carbonate or calcium citrate.
    • 6 Jul 2025 · neutral · YouTube ↗
      Explains that bone is 50 to 70% mineral, predominantly calcium, and that virtually all of the body's calcium is contained within bone, making bone important for calcium homeostasis.
    • 22 Oct 2024 · recommends · YouTube ↗
      Recommends calcium for bone health, stating that teenagers probably need about 1000 milligrams a day.
    • 21 Oct 2024 · recommends · YouTube ↗
      Discusses bone acting as a reservoir for calcium and how resorption and formation release calcium into the blood when needed.
    • 18 Jul 2022 · neutral · YouTube ↗
      Notes that bone is 50 to 70 percent mineral, with calcium being the predominant mineral, and virtually all of the body's calcium is contained within bone.
    • 26 Oct 2020 · recommends · YouTube ↗
      Recommends getting about a gram of calcium a day from organic bone meal, which provides calcium hydroxyapatite, the form humans are meant to consume.
    • 12 Jan 2020 · neutral · YouTube ↗
      Suggests that calcium is one of the other signals involved in regulating mitochondrial number, beyond AMPK activation.
    • 7 Jan 2020 · warns · YouTube ↗
      States that in postmenopausal women not on estrogen, calcium and vitamin D have no protective effect against hip fracture because the problem is not the shell of the bone, which is fed by calcium and vitamin D, but the internal girder network.
    • Date not recorded · neutral · Website ↗
      Notes that compelling evidence links calcium to reduced risk of osteoporosis, which can impact mortality from specific causes.
  • Bryan Johnson · Phosphorus · recommends
    • 5 Jun 2025 · recommends · YouTube ↗
      Recommends phosphorus as a mineral that, along with calcium, magnesium, and boron, is deposited to fortify the bone structure.
    • 5 Jun 2025 · Calcium · recommends · YouTube ↗
      Recommends calcium as a mineral that, along with phosphorus, magnesium, and boron, is deposited to fortify the bone structure after the collagen scaffold is in place.
    • 12 May 2025 · Calcium · recommends · YouTube ↗
      Agrees that a little extra calcium is probably okay, especially for women, to really hit home for bone mineral density.
    • Date not recorded · Calcium · recommends · Website ↗
      Recommends calcium at 1,200 mg daily for women during the follicular phase, depending on dietary intake.
    • Date not recorded · Calcium · recommends · Website ↗
      Recommends prioritizing calcium intake for postmenopausal women to help maintain bone density and reduce the risk of osteoporosis.
    • Date not recorded · Calcium · uses · Website ↗
      Bryan Johnson takes Calcium daily as part of his Longevity Mix, which supports healthy bones and teeth.
  • Andrew Huberman · Calcium · neutral
    • 6 Mar 2023 · neutral · Podcast ↗
      Discusses "hard water" and the role of magnesium and calcium in cardiovascular health.
    • Date not recorded · recommends · Website ↗
      Adequate intake of calcium is vital for bone health.

RAL Summary

Members OnlyTier 3 for Blood Pressure

It sits in tier 3 because of its many reviews, 95 percent of them positive, while study support for blood pressure is thin: calcium is well below the studied dose, phosphorus showed no benefit [7], and the enzyme blend has no human studies.

  • Calcium: below the dose that worked in studies

Where the evidence disagrees: 21 of the 42 human studies found no effect.

More Details

Members OnlyBody systems · Combine with · Possible side effects

Body systems: Digestive system, Cardiovascular system

Combine with: Combine with a healthy diet and lifestyle.

Possible side effects: In one small trial, extra phosphate raised blood pressure and pulse in healthy young adults. No other major side effects were reported.

Supplement Facts

Calcium 141 mg · Phosphorus 109 mg · Zygest Blend 425 mg
Supplement Facts
Serving Size 2 Tablet(s)
Servings Per Container 50
Amount Per Serving% Daily Value
Calcium141 mg
Phosphorus109 mg
Zygest Blend425 mg†
† Daily Value not established.

Other ingredients: Dicalcium Phosphate, Vegetable Cellulose, Stearic Acid, Contains Less Than 2% of.

Directions: DIRECTIONS: For adults, take two (2) tablets before or after meals.

Barcode (UPC) 766443103325 · Label source: NIH label database · Report a label change

Other sizes and barcodes: 200 Easy To Swallow Coated Tablet(s), UPC 7 66443 12554 9 (not checked yet)

Show entire label
The Vitamin World Zygest Multi-Enzyme label, 100 Easy To Swallow Coated Tablet(s)
Zygest Multi-Enzyme, 100 Easy To Swallow Coated Tablet(s)

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Graded November 14, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.