Smoky Mountain Naturals Dim Review- UPDATED 2023

Smoky Mountain Naturals 200mg DIM supplement has good reviews, but can the ingredients actually cause side effects?

Smoky Mountain Dim claims to be an all natural, safe, herbal, estrogen-free alternative supplement for balancing estrogen levels. 

It’s important to have balanced estrogen levels otherwise you may experience side effects such as acne, weight gain, fatigue, bloating, and fat accumulation.

Is SM Nutrition the best DIM supplement you can take? Continue reading to learn what you need to know for best results or any results at all.

What is DIM?

DIM is short for 3,3'-Diindolylmethane and is formed by the breakdown of the phytochemical indole 3-carbinol. I3C is found in cruciferous vegetables such as broccoli, Brussels sprouts, kale, and cabbage. 

DIM helps with those who have estrogen dominance which essentially means too much estrogen. It is actually a coined term by Dr. John R. Lee (a pioneer in the study and use of the hormone progesterone) and is described as: 

A condition where a woman can have deficient, normal or excessive estrogen, but has little or no progesterone to balance its effects in the body. Even a woman with low estrogen levels can have estrogen dominance symptoms if she doesn 't have any progesterone. (1)

Signs of estrogen dominance include abnormal periods, sluggishness, slow thyroid, trouble sleeping, fatigue, and fat gain specifically around the abdomen.

DIM is also an aromatase inhibitor which means it stops the conversion of androgens such as testosterone into estrogen (2). This makes DIM a popular supplement not just for women but for men as well.

Benefits of DIM

  • Reduces acne and helps even skin tone.
  • Reduces symptoms of menopause, PMS, and estrogen dominance
  • Weight loss
  • Reduces risk of estrogen-based cancers like breast cancer (3) 
  • Promotes hormonal balance
  • Can be obtained by eating certain foods

Who Can Take It?

Even though DIM is mostly promoted for women's health, men can also benefit from taking it to balance their testosterone levels as estro metabolism is what supports testosterone. (4)

Men who take DHEA and DIM together may see a healthy balance of testosterone and estrogen which helps improve libido, mood, and energy.

Most men who take dim supplements reported feeling stronger in the gym and weight falls off fairly quickly.

Should You Combine DIM With Other Supplements?

From my experience I find that taking Biotin with a DIM supplement is beneficial because it will help stop hair loss. Hair loss in men and women may occur when estrogen is lowered too much or too big of a dose is taken.

DIM can also be taken along with an indole-3-carbinol supplement for extra estrogen lowering results. There should not be a reason why you can't take a multivitamin along with this supplement.

We recommend that you consult your doctor before taking the DIM Smoky Mountain Natural supplement to go over any interactions that DIM or other ingredients in the supplement may have with your current conditions, medications, or supplement regimen.

DIM could also be taken along with a topical acne cream and possibly supplements for acne if you are looking for that effect.

Sm Nutrition DIM Ingredients & Dosing

The serving size is 1 capsule and there are 60 servings per container. This could last up to a full 60 day supply. 

DIM can be taken in the morning or night but as it can increase urination it may be a better idea to take it earlier in the day.

Some people may need a larger dose depending on the severity of their estrogen dominance issues. Men in general who are larger may also need a higher dose which would make the bottle last shorter than 60 days.

acnetame pills

Acne Tame can be taken with Estrohalt for a profound skin clearing effect.


Amount per serving

DIM (Diindolylmethane)

200 mg


2.5 mg

This formulation is different from the Smoky Mountain DIM 250mg as it contains different ingredients including a lesser amount of DIM.

The ingredients in the advanced formula are DIM, vitamin D3, sulforaphane, dong quai, spinach, alfalfa, and kale leaf powders, as well as BioPerine.

What is the Function of BioPerine?

The function of Bioperine is to increase the absorption of minerals and B-vitamins.

This DIM supplement does not contain minerals or B-vitamins so we don't see the reason for adding it in. 

How Long Does It Take for a DIM Supplement To Work In Your Body?

The answer to this question is dose dependent as well as dependent on the person taking it.

Some people may notice the effects within hours and others may need to take it for a few weeks before they start feeling better.

Height, weight, severity of estrogen dominance symptoms, dosage, and quality of the ingredients all play a role in how well DIM will work for someone.

Personally I like taking DIM in a low dose when I am carrying excess bloat and have low energy. I find it works immediately when I actually need it otherwise I am prone to joint cracking and muscle aches due to the lack of water in my body.

UPDATE: February 2024

Dim Smoky Mountain Naturals brand continues to be a high seller with overall good, but still mixed reviews & ratings.

If you are looking for a product which is a bit more safe and effective we recommend you read about Estrohalt to help you get that perfect hormonal balance in your body.

If you were wondering they actually are based near Nashville. The home of the Smoky Mountains.

DIM 200mg Plus Bioperine Common Side Effects

  • Hair loss
  • Anxiety
  • Dehydration
  • Nausea
  • Allergic reactions such as hives, rash, and redness from Bioperine
  • Headache
  • Decreases estrogen too much

I have personally experienced hair loss when taking too much DIM. I was able to save my hair by lowering the dose and not taking it daily while also supplementing with Biotin. I now only take it when needed (right before and first few days of menstrual cycle)

Smoky Mountain Naturals Reviews on Amazon

DIM 200mg Plus Bioperine reviews on Amazon has 4.1 out of 5 stars.

Some DIM reviews have said that it helps to clear their acne, lose weight, and lessen symptoms of PMS and menopause.

Other SM nutrition reviews have experienced headaches, nausea, and hair loss as their estrogen dropped too low.

These are signs that the product is working, but it can be hurtful to the body. You may want to stop the treatment or take a smaller dose less often if that occurs.

Hair Loss Disaster

Makes your hair shed ALL OVER. Eyelash hair, eyebrow hair, pubic hair! I only took it for a week and discontinued when my hair began falling out. It’s been OVER A MONTH since taking this product and my hair is STILL SHEDDING. I reached out to Smoky Mountains Naturals and they take ZERO RESPONSIBILITY for the LASTING effects of this supplement but told me to see a doctor because it seems like there is something wrong with my hormones. After that they stopped replying to my emails. Buyers BEWARE. Be careful of what you put into your body!

Where to Buy

SM Nutrition DIM is only sold on Amazon US and cannot be purchased on Amazon UK or Canada. International shipping to the UK is available on their brand site. 

There are no promo codes or discount codes as we write this for Smoky Mountain. You can find a list of other Smoky Mountain products on their website.

If you live in the UK or Canada you can buy the best estrogen blocker here and redeem a free bottle after your purchase.

Smoky Mountain Naturals vs. Estrohalt

estrogen blocker for women

Estrohalt is available on Amazon US and can now buy Estrohalt in Australia, too.

Smoky Mountain DIM are capsules and can not be broken in half unlike Estrohalt. DIM supplements may be strong for some people so if you take a capsule you do not have the option to take a lower dose to judge it's strength.

Smoky Mountain Naturals DIM contains Bioperine which is derived from black pepper and has been shown to increase the absorption of B-vitamins, but not DIM or any other protein or amino acids for that matter.

Estrohalt does not contain this ingredient because frankly it does not do anything if there are no vitamins or minerals involved and will also cause side effects such as facial redness.

The only way that Bioperine may be beneficial in this product is that it has a slight thermogenic effect. It is only added in a 2.5 mg though so it it may not be enough to actually experience that effect.

Indole-3-carbinol is an important ingredient that is contained in Estrohalt and Smoky Mountain does not have it. As mentioned earlier, indole is a phytochemical which when broken down in the body forms DIM and is used for its antioxidant and cancer-fighting properties. (5)

I3C is both an estrogen blocker and aromatase inhibitor because it converts into DIM, blocks the actions of estrogen, as well as binds to the aromatase enzyme and prevents it from turning testosterone into estrogen.

Using a product like Estrohalt that contains both an estrogen blocker and aromatase inhibitor will most likely help decrease the side effects of too much estrogen more effectively.

We believe the best DIM supplement is Estrohalt for these reasons.

Pros & Cons


-Gluten, GMO, dairy and soy free.

-Suitable for vegan diets.

-Effective for lowering estrogen and side effects of too much estrogen.


-Cannot be broken in half because they are capsules.

-Contains Bioperine.

-Claims to be "all natural", but does not back this information up in any way.

-Should not be taken for a long period of time.

CONCLUSION: Should You Take Smoky Mountain DIM?

Both men and women need a healthy level of estrogen and testosterone in their bodies otherwise they may experience side effects such as low energy, acne, weight gain, and mood swings. DIM can help balance these hormones and stop these negative side effects.

Products like Smoky Mountain contain black pepper in "Bioperine" which does not have any effect on estrogen but instead can cause side effects. We do not think Bioperine works in this supplement.

This product may work best with a healthy lifestyle and low carb diet as lowering carbs will result in less bloating and will make you feel better. Always be sure to drink enough water to improve the effects. We also recommend a product that does not contain Bioperine and that can be broken in half for best results.

  1. References