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Source Focus WT (Weight) — Health (Now feeding a hard keeper doesn't have to be hard)

Source Focus WT (Weight)

Now feeding a hard keeper doesn't have to be hard.

Tired of feeding a hard-keeping horse with no weight gain to show for it?

Reviewed by Ann Pruitt, InfoHorse.com · Updated May 2026
Focus WT by SOURCE weight supplement shown in 3.5 lb and 25 lb tubs with measuring scoop and powder
Focus WT by SOURCE weight supplement shown in 3.5 lb and 25 lb tubs with measuring scoop and powder

Some horses just seem to need more than good feed and a clean parasite program to thrive. You can pour the grain to a hard keeper and still watch the ribs show. Focus WT by SOURCE, INC. was built for exactly that horse — the thin keeper who needs help turning the feed already in front of him into real, lasting condition. Now feeding a hard keeper doesn't have to be hard.

Focus WT by SOURCE 25 lb tub, an eight-month supply for one horse, fortified with ocean micronutrients
Focus WT by SOURCE 25 lb tub, an eight-month supply for one horse, fortified with ocean micronutrients

Why does my hard keeper stay thin on plenty of feed?

Weight loss in an otherwise well-managed horse is often less about how much goes in the bucket and more about what the horse actually absorbs and uses. Incomplete digestion, an inefficient metabolism, or the wear of stress and temperament can all quietly rob a horse of condition. Focus WT works on that underlying picture rather than simply adding empty calories. By supporting how a horse breaks down and uses the feed he is already getting, it helps the thin horse start holding weight and looking like himself again.

Focus WT by SOURCE label showing the guaranteed analysis and full ingredient statement for the weight formula
Focus WT by SOURCE label showing the guaranteed analysis and full ingredient statement for the weight formula
What's inside Focus WT, and how does it support weight gain?

Focus WT pairs the legendary SOURC E micronutrient base — concentrated from nutrient-rich ocean seaweed — with a broad spectrum of support nutrients aimed at digestion and condition. The formula combines dehydrated seaweed meals and alfalfa meal with a nutritional yeast culture, live beneficial microbes such as Lactobacillus acidophilus and Bacillus subtilis, and digestive enzymes including amylase, protease and cellulase. Rounding it out are B-complex vitamins and chelated trace minerals like zinc, manganese and copper proteinate, which the body absorbs readily. A daily serving also delivers naturally occurring organic iodine from the kelp. There are no artificial colors, flavors, preservatives, synthetics or drugs — just whole-food ocean micronutrients doing the work.

How do I feed Focus WT, and how long does a tub last?

Feeding is simple. Mix one level measure — the scoop is included, about 1.5 oz — into the daily feed, based on a 1,000 lb horse, and adjust to body weight. Feed it every day, including competition and race days, alongside the basics every horse needs: adequate hay and grain, a balanced calcium-to-phosphorus ratio, parasite control, fresh water, free-choice salt and regular dental care. Focus WT comes in a 3.5 lb size that lasts one horse about 37 days, and a 25 lb container that lasts roughly eight months — condition support that works out to pennies a day.

SOURCE Original dry meal formula tubs, the foundational kelp micronutrient concentrate behind the Focus WT weight formula
SOURCE Original dry meal formula tubs, the foundational kelp micronutrient concentrate behind the Focus WT weight formula
Who is SOURCE, INC.?

SOURCE has been the pioneer in ocean micronutrient supplementation since 1975, when founder Susan Domizi first formulated a finely ground seaweed concentrate to help her own eventing horse overcome hoof and weight troubles that good care alone hadn't solved. Drawing on Norwegian and Japanese seaweed research, she built a supplement on a simple idea: the soils and feeds horses depend on have grown increasingly nutrient-deficient, and ocean-derived micronutrients can fill those gaps. SOURCE is a founding member of the National Animal Supplement Council (NASC) and carries its Quality Seal, and the company was the first in the horse industry to stand behind its products with a no-questions-asked, money-back guarantee.

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The Solution Section (FAQ)
What kind of horse is Focus WT made for?

Focus WT is formulated for the hard keeper and the thin horse — the one who struggles to gain or maintain weight even with good feed management and parasite control, including horses kept under stress.

How is Focus WT different from regular SOURCE micronutrients?

It starts with the same legendary SOURCE ocean-micronutrient base, then adds a broader spectrum of support nutrients aimed specifically at weight and condition: nutritional yeast culture, beneficial microbes, digestive enzymes, B-complex vitamins and chelated trace minerals.

How much Focus WT do I feed each day?

Mix one level measure — about 1.5 oz, using the included scoop — into the daily feed, based on a 1,000 lb horse, and adjust to your horse's body weight. It can be fed every day, including competition and race days.

What sizes does Focus WT come in?

Focus WT is available in a 3.5 lb size, about a 37-day supply for one horse, and a 25 lb easy-open container, roughly an eight-month supply for one horse.

Does Focus WT contain any artificial ingredients?

No. Focus WT contains no artificial colors, flavoring, preservatives, synthetics or drugs. Its iodine is naturally occurring and organic, sourced from the seaweed itself, so it should be fed at the recommended rate rather than exceeded.

Can I feed Focus WT alongside my horse's normal program?

Yes. Focus WT is meant to work with sound horsekeeping, not replace it. Keep up adequate hay and grain, a balanced calcium-to-phosphorus ratio, parasite control, fresh water, free-choice salt and regular dental care, and mix the supplement right into the daily feed.

Is SOURCE a trusted company?

SOURCE has been the pioneer in ocean micronutrient supplements since 1975 and is a founding member of the National Animal Supplement Council (NASC), audited and certified to carry the NASC Quality Seal. It was also the first nutritional supplement in the horse industry to offer a no-questions-asked, money-back guarantee.

Why might a horse stay thin even on plenty of feed?

Weight problems often come from incomplete digestion, an inefficient metabolism, or the toll of stress and temperament rather than from too little feed. Focus WT targets that underlying picture, helping the horse make better use of the nutrition already in the bucket.

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Ann Pruitt
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