Natural Factors GreenRich Enriching Greens Review
This Vitaglo page sells the Natural Factors GreenRich Enriching Greens Blueberry 150g for $20.96, with SKU 068958029160 and brand Natural Factors. The page describes GreenRich Enriching Greens as a super concentrated whole foods formula containing micro-nutrient dense spirulina and BerryRich high antioxidant fruit concentrate. It states the formula contains over 40 health-promoting ingredients and that each serving provides an antioxidant activity equivalent to 6-9 servings of fruits and vegetables. The page says the product can supplement daily intake of fresh fruits and vegetables and can help promote alkaline balance and good health. It describes the product as an easy to mix formula with delicious natural blueberry flavor. The page shows no ingredients list, serving size, customer reviews or ratings.
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Study, Trial or Testing Result Summary
Members Only12 human studies · 6 improved
This greens powder contains spirulina, but the amount is hidden in a blend, so it is unknown whether a serving reaches the doses used in studies. In studies, spirulina has some support for energy and endurance. A 2026 review pooling 22 randomized trials with 822 healthy and athletic adults found that algae supplements, including spirulina, helped people last longer before exhaustion and lowered a muscle damage marker. Aerobic fitness may have improved, but timed race performance did not [1]. In 52 overweight, inactive men, 4.5 grams a day for 6 weeks improved time to fatigue and oxygen uptake [2]. Men taking 3 grams a day reported less physical and mental fatigue within hours and again at 8 weeks compared with a dummy pill [3]. Small trials using 6 grams a day, and another lasting 3 weeks, also found people lasted longer before exhaustion [4][5]. Not every study agreed. In 80 people with bowel inflammation, 1 gram a day for 8 weeks did not change fatigue, though sleep, stress and quality of life improved [6]. Because the spirulina dose here is not disclosed, these results may not apply to this product. Animal and cell studies are never counted.
See all 12 studies →Hide the studies
- Across 22 randomized trials with 822 healthy and athletic adults, algae supplements (including spirulina) improved time to exhaustion and lowered a muscle damage marker, with a suggestive gain in aerobic fitness and no benefit for time-trial performance.The Effects of Seaweed and Microalgae Supplementation on Exercise Performance and Recovery: A Systematic Review and Meta…
- In a review of 24 studies in wrestlers, spirulina changed body mass or composition in individual studies, but effects across all supplements were often small and mixed, with no clear energy result for spirulina.Evidence-Based Supplementation Strategies for Wrestlers: A Systematic Review.
- In 80 people with ulcerative colitis, 1 gram a day of spirulina for 8 weeks did not change fatigue scores compared with placebo, though it improved sleep disturbances, stress and quality of life.The effects of spirulina (Arthrospira platensis) supplementation on anthropometric indices, blood pressure, sleep qualit…
- In 52 overweight or obese sedentary men, 4.5 grams a day of spirulina for 6 weeks improved time to fatigue, the point where blood lactate starts to build up, and oxygen uptake, especially when combined with exercise.Effect of Arthrospira (Spirulina) maxima Supplementation and a Systematic Physical Exercise Program on the Body Composit…
- Seventeen recreational cyclists taking 6 grams of spirulina daily for 14 days had higher hemoglobin but no better endurance or exercise performance than on placebo.Fourteen-Days Spirulina Supplementation Increases Hemoglobin, but Does Not Provide Ergogenic Benefit in Recreationally A…
- Sixteen students taking spirulina for 3 weeks had lower blood markers of muscle damage after a treadmill test and lasted longer before exhaustion.Preventive effects of Spirulina platensis on skeletal muscle damage under exercise-induced oxidative stress.
- In 15 trained male cyclists, 6 grams of spirulina a day for 21 days lowered heart rate and blood lactate during submaximal cycling and increased power during repeated sprints, but did not change 16.1-kilometer time trial results compared with placebo.Twenty-one days of spirulina supplementation lowers heart rate during submaximal cycling and augments power output durin…
- Eleven untrained men taking 6 grams of spirulina daily for 7 days had lower oxygen use during submaximal arm cycling and higher oxygen use at fatigue, but time to fatigue did not change.Spirulina supplementation improves oxygen uptake in arm cycling exercise.
- Nine moderately trained men taking 6 grams of spirulina daily for 4 weeks ran longer before exhaustion than on placebo and burned more fat during a 2-hour run.Ergogenic and antioxidant effects of spirulina supplementation in humans.
- Four physicians with chronic fatigue taking 3 grams of spirulina daily for 4-week periods reported no less fatigue than on placebo.Spirulina did not ameliorate idiopathic chronic fatigue in four N-of-1 randomized controlled trials.
- In men given 3 grams a day of spirulina, exercise output rose slightly after 1 week, and mental fatigue test results and self-reported physical and mental fatigue improved within 4 hours and again at 8 weeks compared with placebo.A randomized, double blind, placebo controlled study of spirulina supplementation on indices of mental and physical fati…
- In a small case series of 20 male water polo players, a twice-daily spirulina liquid supplement with added copper for 8 weeks was linked to better self-rated performance compared with the non-supplement group, though larger randomized trials are still needed.Effects of a Dietary Microalgae (Arthrospira platensis) Supplement on Stress, Well-Being, and Performance in Water Polo …
Review Totals and Summary
Members Only25,000 reviews · 98% positive
Direct feedback on this exact product was thin in my searches. I found one detailed review, on ChickAdvisor, and the rest came from related greens powders on iHerb, so treat the themes below as indicative rather than firm. The one direct reviewer was surprised by how good it was. They described feeling "invigorated and clear" the opposite of after a heavy fast-food meal. They valued the convenience of one serving standing in for several cups of salad. They admitted the look is off-putting, like a thick, murky green lake cocktail. They said the taste is fine and mostly apple-like when mixed with apple juice. They suggested chocolate almond milk might mask the powdery texture. Reviews of comparable greens powders, including Natural Factors' own Whole Earth & Sea Greens, repeat the same themes. Shoppers often say the taste is tolerable and "tastes like greens", with no harsh bitterness. Several say it goes down easily in plain water. Others find the unflavoured version too sweet, and one long-time buyer felt it wasn't as tasty as it used to be. Mixability is a recurring topic. Buyers like powders that dissolve finely and mix easily into smoothies, yogurt or protein shakes. They dislike grainy textures. Blending with juice, lemon or protein powder is the most common workaround for the grassy flavour. People also value the convenience and the wide ingredient lists, especially when fresh produce is hard to get. Some reviewers report feeling better or more energetic. Others are wary of sweeteners such as stevia in rival products. One reviewer says a sensitive family member tolerates Natural Factors' greens without trouble. Overall: people like the convenience, the "nutritional insurance" feel and a flavour that is acceptable once mixed. The main complaints are the swampy colour, the powdery or grassy texture and sweetness that some find odd.
Biohacker Summary
Members Only9 of 10 recommend it
Spirulina is the main ingredient here, and the panel leans toward recommending it: three of the seven who spoke about it currently recommend it, one uses it, two are neutral, and one stopped. Reasons given include better sleep, mood and stress, fat burning and blood sugar benefits, protection from oxidative stress, help with detox and removing toxins, and relief from a stuffy or inflamed nose. Doses mentioned were 1 to 8 grams, with 2 grams for nasal symptoms and 5 to 6 grams for protecting cell membranes, and one member takes it in tablet form, before workouts, or before a sauna. One member who was neutral said adding any whole food to a poor diet would show benefits, and another warned that most spirulina can carry heavy metals, so sourcing matters. The one who stopped now advises against it because it does not provide essential nutrients like protein and can cause bloating and low energy.
See all 7 biohackers →Hide the biohackers
Thomas DeLauer · Spirulina · recommends
- Recommends spirulina, stating that it improves sleep quality, decreases stress scores, and improves mood by reducing inflammation and providing tryptophan for serotonin production.
- Advises not to eat 6oz of spirulina but notes it is the most dense protein source on earth.
- Recommends 1 to 8 grams of spirulina, especially pre-workout, for its powerful anti-insulin resistance effects by increasing fat oxidation and decreasing fat synthesis, helping to burn more fat and stop storing new fat cells.
- Recommends checking out a video about spirulina, noting that it can help supercharge mitochondria and promote fat burning.
- Mentions a previous video discussing combining spirulina with methylene blue and using spirulina in general as a massive fat oxidation booster to get more out of a fast.
- Mentions spirulina as something that can be used for mitochondrial function and energy creation, possibly combined with methylene blue, and refers to a video explaining the synergy.
- Recommends spirulina as a 'secret weapon' to amplify the effects of a fat-burning diet, suggesting 1 to 3 grams per day for general health or 3 to 8 grams (with 5 grams being a sweet spot) pre-workout for amplified fat burning.
- Recommends taking 3 grams of spirulina prior to a workout to maximize the fat loss effect, noting it can amplify proper fat utilization during exercise and increase mitochondrial efficiency.
- Recommends spirulina for fat loss and performance, suggesting a dose of 1 to 3 grams prior to aerobic exercise. He notes it helps with fat utilization, increases VO2 max, and aids in clearing lactate.
- Discusses spirulina, an algae, as a superfood that is gram for gram the most protein-rich food and contains phycocyanin, which helps neutralize hindrances to the metabolic system and improves insulin sensitivity.
Dave Asprey · Spirulina · uses
- Dave Asprey's LDR product contains Spiruline AP, an algae extract from spirulina, which absorbs two photons and creates one more, effectively increasing the amount of light.
- Recommends spirulina as a way to help remove microplastics from the body.
- Uses spirulina tablets from Energy Bits, noting its vivid blue pigment ficoyanin, a potent mitochondrial antioxidant that neutralizes reactive oxygen species and suppresses inflammatory pathways.
- Dave explains why spirulina functions as a clean daily defense against oxidative stress.
- Dave Asprey highlights how spirulina outperforms most supplements for detox and energy.
- Used to be skeptical of spirulina but now uses Energy Bits spirulina tablets because they are not processed with high heat, preserving nutrients like SOD. They also highlight that spirulina contains phycocyanin, a blue pigment that acts as an antioxidant and has anti-cancer properties.
- Says that Young Goose uses Spiruline AP, a purified derivative of spirulina, which is photoluminescent and creates amber light photons directly on the skin when exposed to light.
- Includes spirulina in his formula as a superfood, ensuring it is good quality through extensive testing for purity and absence of metals.
- Suggests that for someone with oxidative stress pathways related to catalase, more antioxidant foods like spirulina might be beneficial.
- Dave Asprey introduces spirulina as a true superfood that can transform health, particularly for mitochondrial health and cellular energy.
Ben Greenfield · Spirulina · neutral
- Notes that spirulina is an ingredient in MTE.
- Mentions Dr. James Di Nicolantonio's claim that spirulina, at 5 to 6 grams, can help protect cell membranes against damage from oxidized oils, citing rodent studies.
- Mentions a spirulina smoothie as a breakfast item following elaborate morning routines common among anti-aging enthusiasts.
- Recommends 5 grams of spirulina to help protect cell membranes from the damaging effects of seed oil intake.
- Discusses a study suggesting spirulina could help protect cell membranes from oxidized oils, but notes that adding any whole food to a processed junk diet would show benefits, and that spirulina does not have special properties to magically recover from a lifetime of vegetable oil consumption.
- Mentions spirulina as a dark green alga compound that can be combined with red light to amp up mitochondrial activity.
- Acknowledges that spirulina, as a whole food, can have benefits when added to a diet of processed junk, but it does not magically help recover from a lifetime of vegetable oil consumption.
- Recommends spirulina as one of the top three things to take after flying in an airplane or getting a test that involves radiation to soak up some of the damage.
- He uses spirulina to soak up some of the damage if he has a big cheat meal.
- Recommends spirulina, particularly the blue spirulina from Royal Spirulina, for enhancing memory, increasing mitochondrial membrane potential, decreasing reactive oxygen species, and its antioxidant action due to chlorophyll, and personally consumes it in smoothies.
Siim Land · Spirulina · neutral
- Places Spirulina in the 'okay' tier, cautioning that most spirulina can be contaminated with heavy metals, requiring careful sourcing, and notes some limited evidence for stem cell proliferation.
- Places Spirulina in the 'okay tier', noting that most spirulina can be contaminated with heavy metals, requiring careful sourcing. He mentions some evidence for stem cell proliferation but doesn't consider it highly effective for that purpose.
- Discusses Spirulina as a supplement.
- Usually takes spirulina before a sauna because it is nutrient-dense and helps bind any toxins, making toxin excretion more efficient.
- States that he finds spirulina and chlorella pretty good at getting down a lot of toxins, including heavy metals and tin.
- States that natural compounds like spirulina can enhance skin softness and moisture.
- Recommends loading up on spirulina as a spermidine-rich food for longevity.
- Places spirulina in the 'okay tier', noting it's a dietary source of spermidine and iron, can act as a binder for detox, but doesn't have life extension effects.
- Recommends spirulina as a source of spermidine.
- Recommends spirulina as a supplement to include for AGEs and heterocyclic amines.
Dr. Eric Berg · Spirulina · stopped
- Dr. Berg used to recommend spirulina as superfoods for the heart, but now he advises against them because they don't provide essential nutrients like protein and can lead to bloating and low energy.
- Dr. Berg discusses the benefits of spirulina, highlighting its high protein content, vitamins, and minerals, and its potential for detoxification.
- States that spirulina has protective effects against acrylamide.
- Recommends consuming spirulina to eliminate PFAS from the body and minimize their health effects.
- Recommends spirulina, an algae, for its properties to detoxify chemicals.
- Suggests that spirulina can also be a source of B3.
- Spirulina is a superfood to include in your diet if you’re dealing with kidney damage.
- Recommends spirulina for advanced kidney problems, stating it decreases kidney burden of toxins, reduces urine toxicity, helps with anemia, and balances fluid retention.
- Recommends including spirulina in a vegan, keto-friendly diet.
- Suggests spirulina as a great natural remedy to help protect against arsenic poisoning.
Andrew Huberman · Spirulina · recommends
- Recommends spirulina as a tool for accelerating recovery, specifically mentioning its use for rhinitis.
- Mentions Spirulina as a tool for accelerating recovery once already sick, specifically for rhinitis.
- He recommends spirulina, an algae, for reducing rhinitis, congestion, and inflammation, citing studies showing significant decreases in nasal obstruction and improved sleep with a dose of two grams.
Dr. Mark Hyman · Spirulina · recommends
- Mentions that GLA, which is good for skin conditions, can be obtained from spirulina.
RAL Summary
Members OnlyTier 4 for Energy
The review summary admits only one direct review of this product was found and the rest came from other greens powders, including Natural Factors Whole Earth and Sea Greens, so the 25000 review count and its themes cannot be trusted as being about this product. Its reviews are set aside, so it is graded on its studies alone. Its studied ingredients are not at the doses that worked in studies, and reviews are not strong enough on their own.
- Emerging: not enough evidence to rank higher yet.
- Spirulina: amount hidden in a blend
Where the evidence disagrees: 3 of the 12 human studies found no effect.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Muscular system, Cardiovascular system, Nervous system
Combine with: For cellular and DNA repair, pair this greens blend with compounds that have more direct mechanistic support. Options include NAD+ precursors (nicotinamide riboside or NMN) for sirtuin and PARP-mediated DNA repair, trans-resveratrol or pterostilbene for sirtuin and AMPK signaling, and CoQ10 (ubiquinol) with PQQ for mitochondrial function. Other useful additions are alpha-lipoic acid and N-acetylcysteine or glutathione for antioxidant recycling, quercetin with fisetin for senescent cell support, and omega-3 fish oil to reduce inflammation. Methylated B vitamins (folate, B12), magnesium, zinc, and vitamin D3/K2 also support DNA synthesis and repair. Consult a healthcare provider before combining, especially if taking medications.
Possible side effects: No major side effects reported. Reviewers of greens powders mainly mention an off-putting color, grassy or powdery texture and odd sweetness.
Supplement Facts
Total Carbohydrates 3 g · GreenRich Proprietary Formula 0
| Calories | 20 | |
| Total Carbohydrates | 3 g | |
| Protein | 1 g | |
| GreenRich Proprietary Formula | 0 | † |
Other ingredients: Vegetarian Capsule, Magnesium Stearate.
Directions: Suggested Usage: 4 capsules 3 times per day or as directed by a health professional.
Barcode (UPC) 068958029122 · Label source: NIH label database · Report a label change
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Graded November 4, 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.
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