I have been seeing a hematologist for chronic, severe iron deficiency Anemia for a few years since I had a gastric bypass and cannot properly absorb nutrients from food. I had tried every single formulation of iron (pills and liquid) possible and could not tolerate them as they made me very nauseous and constipated. I had been racking up the medical bills as I then had to go to the hospital or hematologist for iron I.V. therapy. The I.V. iron gave me joint pain and dropped my blood pressure way too low/got dizzy quite often. I even had a trip to the ER due to an allergic reaction to a different kind of I.V. iron. Thought I'd have to live with the iron I.V. side effects until I stumbled upon Mega Food's Blood Builder. I have been taking it faithfully for 6 months and the last 2 times I had my iron levels tested by my hematologist (I get tested now only every 3 months), I have NOT been anemic. To give you an idea of how anemic I was, I should be a level 13 and I was a 7. I even take it on an empty stomach without any side effects! My doc wanted to know what I was doing differently and I handed him a copy of the label of Blood Builder so that he can pass this information along to his other anemic patients. I'm doing so well, that he just called me today to say that he no longer needs to see me and to keep taking this supplement! Please give this a try and do be faithful with taking it every day and you'll get great results like I did and hopefully you can also "break up" with your hematologist! ***12/14/12 UPDATE: Just got my iron levels checked yesterday and they were 14.5!! Oh yah! All-time record high for me.*** ***3/19/13 UPDATE: For all of those who have emailed me regarding ferritin levels: My ferritin levels (amount of iron in bone) were good/normal to begin with but my blood/serum iron levels were extremely low so I cannot speak to ferritin levels with this product, only blood/serum levels

I began the blood builder one week ago, the day I found out my hemoglobin level was 5.9 and my Doctor called and wanted me to immediately go the emergency room for a blood transfusion and test for internal bleeding. I begged him to let me try to fix naturally, as I had no indication of internal bleeding and felt it was dietary. He very reluctantly agreed with the understanding I would go to ER immediately with any changes I agreed and ordered 4 of Ancestral Supplement products that night with free next day delivery. I already had Blood Builder at home so I began that immediately. The next day I received Ancestral Supplements Beef Spleen, Beef Lung and Beef Organs. 2 days later I received the Beef Liver. ONE WEEK later, (yesterday) I was retested for bloodwork and had test results confirming no blood in Urine or no blood I. Stool and my hemoglobin levels were 7.0!! My doctor said, and I quote: “You must be much smarter than I am, because your level increased from 5.9 to 7.0 in just a week, and the stool test and urine tests confirmed no blood, so your call NOT to have transfusion appears to be the right call!!!” He said to keep doing what I'm going with the food and supplements (I took all supplements in for him to see and he gave his approval). I've totally changed my diet to combine maximum iron and iron absorption foods together too. I take any Calcium products 3 hours after my last meal to ensure maximum iron absorption. A little history, once before many years ago I had dietary induced iron deficiency Anemia, which I corrected with diet. I am normally a blood donor, so I know my iron levels are normally healthy. I recently got a horrible cold with a persistent cough and was drinking a lot of tea (which I didn't realize can block almost all iron absorption). The iron deficiency symptoms i had I thought were related to my cough. I believe I have been deficient appropriately 4-5 months based on what I know now. The owner of Ancestral Supplements, Brian, is truly a gift. I have emailed him multiple times with questions on his product line and what is best for me, and he is so quick to respond and so informative with his responses. He should hold a master class for business owners on the correct way to run a business and interact with customers. Read the reviews. This product line has worked miracles for so many different ailments! Wishing you all the very best health. I am so grateful to reclaim mine!! Blood Builder with the Beef Organs from Ancestral Supplements saves me from a blood transfusion and will remain part of my daily routine

I started taking this Iron Nov 19, 2022. For some time I had been bruising easily waking up feeling very weak and dizzy. I would have heart palpitations and shortness of breathe, Fatigue feeling tired all day and for the life of me couldn't figure out why. One day I started researching Iron and seeing that my symptoms were sounding like symptoms of Anemia, so I figured it couldn't hurt to try. Let me tell you from the first day I noticed a difference I had more energy and by day 3 I wasn't waking up feeling weak and dizzy. Fast forward to today I have so much more energy and I no longer feel dizzy, weak, heart palpitations, shortness of breathe, or fatigue I don't even bruise as easily like before. This has literally saved my life my anxiety was so bad before I thought I was sick but no I just needed iron. You will not regret this , it did not upset my stomach and I have a sensitive stomach. I have also taken it on a empty stomach without any issues. If you have any of these symptoms or are anemic this is what you need it saved my life

LONG POST BUT WORTH READING: I've had Anemia for years, however over the last couple of years it's gotten worse. I had too many days of having severe fatigue, sleeping more than 8 hours and still feeling sleepy, drained, weakness, etc. The prescribed iron pills burned my stomach even when I ate something and then took them, so I stopped taking them. I was about 2 weeks post op & went through my labs and looked up what each abbreviation meant then started researching. I found these & another reviewer said their levels improved. I scheduled an appointment with my primary doc & asked her about them and she said they looked good but she had no info to support, but I could try them. It's been maybe 3 weeks and I'm starting to feel better. These have a slight metallic taste but I rarely taste it because as soon as it's in my mouth I'm washing it down. I'm starting to feel more energetic WITHOUT COFFEE and not needing to push snooze. Only one pill a day instead of the 3/day they wanted me to take

I have been on Amazon for a long time and order pretty much weekly, but I have NEVER reviewed a product before. I felt this one was truly deserving of a good evidence-based review. I was diagnosed with iron deficiency Anemia over a month ago. I had a hemoglobin of 10.6, a plasma iron concentration of 16, and %saturation of 4.2%. I definitely had a downward trend going on since all the relevant results were down from six weeks before. I decided on my own to look into a supplement while my doctor first wanted me to set up all these specialists' appointments (gastroenterologist, gynecologist) to look for blood loss. I already knew it was from heavy periods, but hadn't realized the cumulative effect. Obviously, it easily takes a month to get into see a specialist. So I was just supposed to let my iron concentrations get lower while I waited?! I found this product and ordered it due to all of the very positive reviews. I got it within two days and took the first dose that evening with extra vitamin C on an empty stomach. It may sound unbelievable, but the next morning when I woke up, I actually FELT a difference! I had energy! I could almost feel my cells sucking in all of that iron! I literally bounced around all day. Even my mind felt sharper than at any other time in recent memory. I am a professional scientist, so I would be extremely skeptical reading about seemingly immediate results like that, but what can I say? It happened and I experienced it. I only continued to feel better as the weeks went on. I can't say that I ever got back that initial “high” energy level, though. I still reflect on how I had just acclimated to the fatigue of iron deficiency Anemia without realizing what I had been missing. I finally got into the gastroenterologist last week and he had told me they recommend 325 mg of ferrous sulfate as a supplement. At the time, I hadn't recalled the source iron nor weight of this supplement. I later found another iron supplement of 65 mg with packaging showing the equivalent of 325 mg ferrous sulfate. This one indicates it is 26 mg and “mineral bound S. cerevisiae.” I can't say I know how that translates into mg of ferrous sulfate. So maybe it's below the recommended dose, but obviously it's better than me taking nothing! But maybe the lower dose is why it is not upsetting to the stomach nor causes constipation? I took this supplement the entire time on an empty stomach with extra vitamin C every day. The packaging claim is true, it did not upset my stomach nor cause constipation. The gastroenterologist went ahead and ordered me new lab tests since it had been about a month of me on the iron supplement and he wanted to see if my results had improved. I was a bit concerned they wouldn't be too well improved if I actually had been taking a lower-than-recommended dose. Well, the evidence shows I had no reason to be concerned! The doctor was pleased with this improvement and I'm “to keep doing what I'm doing.” Hemoglobin: 10.6 to 12.8! Plasma iron: 16 to 69! %saturation: 4.2% to 19%

I've taken these during both pregnancies. At 20 weeks in my first pregnancy, my care provider let me know that I was severely anemic and would be unable to birth at the birth center if my levels went any lower. She proceeded to recommend taking 4-8 pills of BloodBuilder every day (yes, over recommended dosage… I forgot how many). This pregnancy, I tried to stay on top of the pregnancy induced Anemia by taking my MegaFood prenatal vitamins and eventually 1 pill of BloodBuilder a day. My iron levels decreased much less dramatically than the first time, but eventually I was told that I had Anemia. Now I'm taking 5 pills a day and my hemoglobin levels are increasing, hallelujah. Some key notes: Throughout both pregnancies, I've had no constipation despite the high dosage, though it has turned my poop nearly black in color. The taste is pretty bad (it tastes like iron) so I recommend eating a meal/snack after to clear the flavor. At the dosage I'm taking, it's pretty expensive, but worth it since it WORKS. If you can, I recommend getting the smaller bottle (90 tablets) and then after it's empty, buying the 180 pack… 180 tablets fit in the 90 tablet container. Anyway, I highly recommend this product

I don't need help being constipated. I really don't. Man, I'm getting old. I had a serious issue with iron deficiency Anemia when I was pregnant with my 4th child. I took every prescription supplement my (excellent) doctors threw at me and nothing was working. My blood was clotting up on me and I got a clot (deep vein thrombosis) and it was pretty scary. After I had my baby the clot broke into my lungs (pulmonary embolism) and the Anemia persisted. Now I couldn't breathe and I had hardly any hemoglobin for what oxygen I was able to get into my lungs. Plus a newborn baby. I was exhausted and labs were not getting better and I was trying everything, including eating loads of liver and tuna and spinach Finally, I tried these supplements and I've never looked back. These made my labs normal within two weeks, which is pretty damned impressive. This was 8 years ago and I have had two more successful pregnancies without ANY blood issues or iron deficiency. I haven't struggled with Anemia since and it was a chronic problem before I found this supplement. Now I have teenaged daughters that also use this supplement around their cycle and their blood work is always fabulous I also vomit almost all vitamin supplements. I have a stupid stomach that likes to get queasy, puke, or get super constipated and these don't do any of that to me I don't have gross burping or nausea or anything. I am a complete and total fan of this supplement. Nothing worked for me as well as this supplement, not by a mile If you're struggling with iron deficiency give this one a tr

I had gastric bypass in 2003. A year later, I was diagnosed with Fibromyalgia. My iron was low for years but my doctor never made a big deal about it. After taking Lyrica and gaining 50 lbs, I went to a new rheumatologist. My iron level was 3 and my red blood count was so low that he compared it to having just given 2 pints of blood. My resting heart rate was 120-130, I was exhausted and out of breath with the slightest exertion. He sent me to a hematologist and I had 5 weeks of IV iron infusion. Following that, my iron level was 175 and my red blood count was normal. Additonally, my pain was GONE. My cats could walk on me without me screaming. I could run up and down the stairs and not get winded. I felt normal for the first time in 10 years. One month later, my iron was back down to 5 and the pain was back. The rheumatologist said that he has a statistically abnormal number of patients with fibro who have had gastric bypass. He believes that the trauma of the bypass triggers fibro. Additionally, there are fibro studies that directly link pain with iron deficiency. I was excited and ready to get regular IV iron to keep my level high. Unfortunately, you can't get approved for IV iron unless you are anemic. I had tried prescription iron supplements a few times but could not stomach them. I was resigned to the fact that if I wanted to feel good, I would have to deal with the stomach issues and take the supplements. I started googling to find other bypass or fibro people to see what kind of iron they took and I found Blood Builder. I take 3 a day, usually after lunch and never have any problems with an upset stomach. My iron has been building up steadily, so I am hopeful that I will reach a level where the pain goes away again. My rheumatologist was so impressed with it that he has suggested it to other patients - and he is not a supplement kind of guy. Additionally, I have started losing weight without changing my eating habits and not exercising. I read somewhere that low iron affects all kinds of bodily functions, including metabolism. That's a happy side effect! If you have had bypass surgery and/or you have fibromyalgia, I recommend you try this for a few months. Even if your iron is in the "normal" range, it might need a boost to get you to the level your body requires

I don't normally do reviews but I got a tremendous amount of help from everyone who posted theirs so here goes...I went in for a sore throat. Had it for three weeks, took two z-packs -still had it. Went back in, got a steroid shot and an antibiotic shot and requested for once in my life- blood work. (needle phobia) So, the next day my blood test comes back and I have severe Anemia and need a transfusion. But, I feel better and emphatically do not want to have a transfusion. I'm told to take an iron supplement for a month and then have more blood tests. At this time, I am experiencing rapid heart rate which I attributed to anxiety from stress, sore throat, which was probably the glossitis from Anemia, rabid ice eating (which I've done for years) a crack in the corner of my lip which I thought was just dehydration, low energy levels, lack of mental clarity which I attributed to regular fatigue, breakthrough bleeding and thinning hair. So, I had a lot of symptoms. I think I've had severe Anemia for many years but my body adjusted itself until it couldn't anymore. About the only thing left was for me to get dizzy enough to faint. I started two hours later on the otc iron by spring valley from wal-mart.- ferrous sulfate. That night researched and found out about taking the pills on empty stomach with orange juice or vitamin c to increase acidity which increases absorption. No eating two hours before or after. No milk, no caffeine, all the myriad things that block iron absorption. I ordered this product and didn't get it for a few days but added it to my schedule immediately. I really didn't want a transfusion! . Took two of these and two of the spring valley, spread out through the day. Had to wake up in the middle of the night to do this. Trying to wrap this up, not sure which worked? I also ate only beef twice a day with orange juice or tomatoes for citrus. I never ate that much red meat in my life, btw, and also btw last year I lost 30 lbs. eating mostly fruit smoothies and nuts. Also, my b-12 levels about half of the normal level. My mother has Anemia also (who knew?) and I think my condition is hereditary and dietary. The point is...all the reviews I could find said three weeks to increase your hemoglobin levels. I did 2.5 points it in 10 days. (I know you can overdose on iron) My LPN's supervisor, a general practioner contacted me and insisted I come in. Said he would give me two weeks to have more bloodwork done. But when he discussed my case with whomever, they all said blood transfusion immediately. I compromised and got the one week grace period. By then I had been on iron 3 days or so. I now own just about every iron supplement available and will update as I find out more. Just so you know, there is a supplement called Proferrin ES (got it on Amazon for $50.)that is based on heme(meat-based) iron that I just received and will be trying. And I'm taking B12 sublingually and getting a B-12 shot. I spent a lot of money on these supplements and it was freaking worth it to me to not have a transfusion. Guess I'll be getting regular blood work now, great. Once I'm out of dangerous levels, will experiment with what works best. Now, daily I'm taking one Blood Builder with food, one proferrin ES with o.j.,and one ferrous sulfate with o.j. Also adding ferrous fumarate from a prescription- swapping out every other day with the ferrous sulfate. Still need to double my iron levels, and they took a lot of my precious new blood for the blood test! I mean really. I'm getting tests done because of my blood problem! That was the closest I felt to dizzy through the whole ordeal. Already staying up til 10:30 at night now, used to go to bed at 8PM. Concerned having Anemia so long may have done permanent damage to my heart though. Doctor said not to exercise until I get my levels up, I could have cardiac arrest.***Update*** Doctor called with 3rd blood test results, taken May 21st. (First was done on April 25th.) Hemoglobin count at 11. Ran two miles and played softball this week. Huge difference. First bill came in, from hospital lab for blood work. Insurance paid $8 of a $250 bill. wow! That stings. Apparently I haven't met my "deductible." I've had three of these blood test now, so I'm wondering what the other two bills will be. Good thing I have such awesome BCBS insurance from my employer. Who can afford to get sick

I am severely anemic. I have been in the ER alot since I have massive blood loss and hemoglobin lvl of 4. I started taking these and it has helped me alot. I'm not at 11 and I'm still working on it. My fibroids make me loos alot of blood but this is helping me so much