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5% Nutrition Core DIM provides an overdosed 325 mg of DIM per serving. That’s not all! There’s calcium d-glucarate, broccoli powder and Bioperine Black Pepper. This is what a great estrogen inhibitor is all about! Core DIM – only from 5% Nutrition!
DIM - 5% Nutrition


5% Nutrition Core Series DIM is a comprehensive formula that contains 325 mg of 3,3’-Diindolylmethane (DIM). However, we've enhanced this formula further to include ingredients that will assist DIM in being more effective or better absorbed once taken!

What is DIM?

Before we dig into the benefits of DIM, let’s understand that DIM comes from Indole-3-Carbinol. That’s a phytochemical in cruciferous vegetables such as broccoli, kale, Brussel sprouts, and cabbage which are broken down by the body into various molecules; one of those molecules is 3,3’-Diindolylmethane (DIM). 

What are the benefits of DIM?

First, it has a positive effect on estrogen regulation, helping to block the conversion of excess testosterone into estrogen. Supporting hormone balance, DIM can lower the negative side effects of having too much estrogen in the body.

When estrogen levels are imbalanced, the body can store additional fat and undermine your goals around a toned and low-fat physique. With proper diet and training, DIM may help shed that extra fat and prevent new fat cells from forming.

A natural energy enhancer, DIM can also support your body's estrogen metabolism, helping you to fight off fatigue, reduce the symptoms of stress, and give you the focus you need to get through your day.

DIM for Men

If you’re on or ending an aggressive supplement program, no doubt you’re concerned about hormonal balance. Getting your testosterone levels back to normal is a priority. Another priority is controlling estrogen. That’s because excess levels of estrogen in men can lead to several unpleasant problems such as gaining fat around your stomach and “man-boobs”. It also tends to leave you with a lack of energy and slower muscle growth.

The body naturally converts excess testosterone to estrogen by a process called aromatization. Normally, this is a good thing because it helps keep your hormones in balance. However, when you have higher than normal testosterone levels, your estrogen levels also increase.

What happens when you end your cycle? Your natural testosterone levels are low and take time to return to normal. Yet estrogen is reacting to the higher levels of test you had during your cycle. That means estrogen is way too high.

DIM for Women

DIM helps a woman’s body create the right balance of “good estrogens” to “bad estrogens”. Briefly, estrogens are a group of hormones that occur naturally in both men and women. Both men and women need a certain level for normal health. As estrogen breaks down in the body, its metabolites can either help or harm a woman’s health. That’s why they are called “bad” and “good” estrogen metabolites. The “good” estrogen metabolites have high antioxidant activity. The “bad” estrogen metabolites lead to unwanted body composition changes. That means we want to increase the proportion of good metabolites to bad metabolites. DIM supports this process.(1)

Benefits Of "Good" Estrogen

It should be noted that for both men and women, DIM has been shown to help improve overall metabolism. That’s because it’s a natural regulator of energy metabolism. In other words, it helps convert stored fat into energy.  “Good” estrogens also help reduce inflammation. This can help ease post-workout soreness. These are the positive effects of normal levels of estrogen.(2)


DIM - 325 mg

As noted, DIM is derived from Indole-3-Carbinol. That’s a phytochemical found in cruciferous vegetables such as broccoli, among others. DIM has beneficial effects on estrogen metabolism and helps inhibit testosterone to estrogen conversion. It also helps lower the effects of estrogen on the body. This, in turn, supports hormonal balance and helps prevent muscle loss. These benefits will support your physique goals.(3)

Calcium D-Glucarate - 250 mg

This is a calcium salt made of calcium and glucaric acid. That’s a chemical compound found naturally in the body. It’s also found in foods such as broccoli, oranges, apples, and grapefruit. It works with DIM to amplify its estrogen regulating effects. It does this by helping to lower levels of estrogen in the body.(4)

Organic Broccoli Powder - 50 mg

This ingredient is high in nutrients such as vitamins C and K. Both DIM and glucaric acid are sourced from vegetables such as broccoli. Research suggests this compound works synergistically with DIM. This ingredient promotes healthy, normal estrogen function.

Bioperine® Black Pepper Extract - 5 mg

This is a patented form of black pepper that enhances the absorption of nutrients. After all, if your body cannot absorb the supplementation you've spent good money to purchase, what's the point!? Be sure to maximize your value and only buy a DIM product with enhanced absorption properties.

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Supplement Facts

  • USA
serving size: 2 Capsules servings per container: 30
per serving % daily value
Calcium (as Calcium D-Glucarate) 50 mg 4%

3,3'-Diindoly|methane (DIM) 325 mg **
Calcium D-Glucarate 250 mg **
Organic Broccoli (Brassica oleracea L.) Powder (floret & stalk) 50 mg **
Black Pepper (Piper nigrum) Extract (fruit) (BioPerine®) 5 mg **
*Percent Daily Values are based on a 2,000 calorie diet.
**Daily Value (DV) not established
Other Ingredients: Gelatin (Capsule), Microcrystalline Cellulose, Rice Powder, Magnesium Stearate, Silicon Dioxide


Frequently Asked Questions

  • What are the suggested directions for using Core - DIM?

    Take two capsules by mouth daily, in the morning with your meal.

  • Will Core - DIM help me with after weight training muscle soreness?

    DIM promotes normal levels of estrogen. By doing this, it optimizes levels of “good” estrogen. One of the benefits of this type of estrogen is reduced inflammation. That means it may help reduce post-workout muscle soreness.

  • Why is Core – DIM the best product within its category on the market?

    Unlike other products that only provide DIM with no supporting ingredients, Core - DIM gives you a full 325mg of DIM plus calcium d’glucarate, organic broccoli, and bioperine black pepper. These extra ingredients enhance the effectiveness of DIM, and bioperine improves absorption of the entire formula.

  • Who can take Core – DIM?

    Anyone 18 years of age or older.

  • What is the optimal training style for people taking Core – DIM?

    While Core - DIM will work with any resistance-based exercise or endurance-based training style, it is ideal for intense workouts using medium to high volume and 70-85% 1RM for reps in the 8-12 range that include beyond failure techniques.

  • What 5% Nutrition® products can I stack with Core - DIM?

    Post Gear, Bigger By The Day, Shake Time.

  • Do I need to cycle Core – DIM?

    No, there is no need to cycle Core – DIM.

  • What are the Core – DIM capsules made from?

    We use bovine gelatin in both those capsules.


Product Warnings

Not intended for persons under the age of 18. Do not use if pregnant or nursing. Consult a health care professional prior to consumption if you have any pre-existing medical conditions including but not limited to: diabetes, high or low blood pressure, heart, liver or kidney disease, cardiac arrhythmia, stroke or are taking any prescription medication.
Store in a cool, dry place away from sunlight and with lid tightly secured.
†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
 WARNING: Consuming this product can expose you to chemicals including lead, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to